Friday, December 5, 2008
5th December Gre Quants Question
1. Given N is a positive odd integer. If the number in the tens digit is double the digit at the units place then what is the value of N?
A. n>90
B. 30
D. 30
2. Given a series of numbers 1, -1, 2, -2, 3, -3.......
Col A: The sum of the first 67 terms
Col B: 34
3.
Given a figure like above, with the sector angle given as 45degree & the side of the square is given as 'x'. Find the area of the shaded region?
4. If a, b, c are three integers with value 0, 1 or 2 and if (3^2)a + 3b + c = 25, then what is the value of a + b + c?
5. Given
3.s(n) = 1; if n is even
3.s(n) = -1; if n is odd
then what is 2^s(3) - 3^s(4)?
6. Given length of hall is 48 feet and width of hall is 10 feet. If it has to be covered by square tiles of length 8 inches and tiles come in packets of 100 tiles, then how many packets have to be brought?
7. Given four consecutive numbers and if the least number is x, then what is the arithmetic mean in terms of x?
(given question is similar to this)
8. If y > 0, 2x = y + 1, then for xy>0 what is the value of x?
Friday, December 5, 2008
5th December Gre Quants Question
1. Given N is a positive odd integer. If the number in the tens digit is double the digit at the units place then what is the value of N?
A. n>90
B. 30
D. 30
2. Given a series of numbers 1, -1, 2, -2, 3, -3.......
Col A: The sum of the first 67 terms
Col B: 34
3.
Given a figure like above, with the sector angle given as 45degree & the side of the square is given as 'x'. Find the area of the shaded region?
4. If a, b, c are three integers with value 0, 1 or 2 and if (3^2)a + 3b + c = 25, then what is the value of a + b + c?
5. Given
3.s(n) = 1; if n is even
3.s(n) = -1; if n is odd
then what is 2^s(3) - 3^s(4)?
6. Given length of hall is 48 feet and width of hall is 10 feet. If it has to be covered by square tiles of length 8 inches and tiles come in packets of 100 tiles, then how many packets have to be brought?
7. Given four consecutive numbers and if the least number is x, then what is the arithmetic mean in terms of x?
(given question is similar to this)
8. If y > 0, 2x = y + 1, then for xy>0 what is the value of x?
17 comments:
-
Anonymous said...
-
9.fresh fruit contains 72%water and dryfruit contains 20% water .how much dry fruit from
100 popunds of fresh fruit can be obtained
10. during a year factory increased the output twice by the same percent of x in the begining 600 articles
were produced per month finally 726
cola x%
colb 10%
11.a man buys land and pays 20 times its annual rent
cola rate%
colb 5%
12.some birds settled on the branches of a tree. first, they sat one to a branch and there was
one bird to many. next theysat two to a branch too many. how many branches were there.
A 5
B 4
C 3
D 6
E 7
13.pan s is used to hold measuring weights ans pan R is used to holds object to be weighted.what is the least
numbber of weights of whole number denomination that can be used to balance any whole number weight less than 64.
A 4
B 5
C 6
D 15
please explain 9 10 11 12 13 with explanations thanxxxx -
December 7, 2008 at 1:37 PM
-
Anonymous said...
-
1.B&C
2.C
3.3*pi*x^2/4
4.5
5.2^(-1/3) - 3^(1/3)
6. 1 -
December 7, 2008 at 1:38 PM
-
Anonymous said...
-
1 c
2 c
3 11x^2/16
4 5
5 -5/2
6 11
7 x+ 3/2
8 multible values -
December 7, 2008 at 1:38 PM
-
Anonymous said...
-
cud u pls explain Q5
-
December 7, 2008 at 1:38 PM
-
Anonymous said...
-
1) N=93
so N>90 or N>50
so both the options are true
2) As per the series.....the 67th number is 35
so A is greater
3) we dnt hav anything to do with area of a asquare or area of unshaded region......the sol is obtaind by calculating the area of unshaded area alone
it can be done =(area of a circle-area of the arc)
=pi(r*r)/2 - (angle/360)*pi(r*r)
HERE r=x/2 and angle=45deg
4) 9a+3b+c=25
=> 9*2+3*2+1=25
=> a=2,b=2,c=1.
=> a+b+c+=5
5) s(n)=1/3 for even n s(n)=-1/3 for odd values of n.....so 2^(-1/3)-3^(1/3)
6) 1feet=12 inches
so length = 48*12=576inch n width=10*12=120....
so nof tiles =576*120=1080
so 4r pack dr will b 100tiles.....
so no of packs 4r 1080 are approximately=11
7)as it is given x*y>0...it implies dt x&y are either +ve or -ve....
it is also given dt y>0
so x must also b a +ve number so we will gt many no.of solutions......
CORRECT ME IF I AM WRONG...THANK U -
December 7, 2008 at 1:39 PM
-
Anonymous said...
-
NUMBERS WRONGLY ORDERD
IF A 4GT THE 7TH.....SO SEE DT THE ans GIVEN TO 7TH IS THE ANS 4R 8TH QSTN.....
7TH ANS IS .........four consecutive numbers...least is X....
so the numbers are......X,X+1,X+2,X+3.
so the mean is X+3/2 -
December 7, 2008 at 1:39 PM
-
Anonymous said...
-
@@@@ manoj
9) sorry dude i didnt gt it
10) x%=10.5%.....so A is corrct to it.
(600*10.5)/100 = 63
63*2 = 126.........so 600+126=726
11) A=(P*N*R)/100
HERE IN D PROBLM A=2P.....N=1.....
SO R=200....SO R%=2%
12) I THINK THE DATA IS INSUFFICIENT...U SHLD HAV GIVEN NO.OF BIRDS...I THINK
13) SORRY I DID NT GT D ANS 4R DS TOOO....
THANKS DUDE...PLZ SAY ME D ans IF ANY ONE GTS -
December 7, 2008 at 1:39 PM
-
Anonymous said...
-
@@@MANOJ
12) IF DR ARE 6 BIRDS AND IF THERE ARE 5 BRANCHES THEN TWO BRANCHES WILL B LEFT IF BIRDS SIT TWO TO A BRANCH....I THINK U GT THE ANS......... -
December 7, 2008 at 1:40 PM
-
Anonymous said...
-
hello sreekanth,
plz check #1 i thnk da answer is N=21 or 63 and not 93.double means 2 times and not square. so da most valid answer is 30< N or N >50.
#8 i am getting (4x+6)/4=2(2x+3)/4 = 2x+3/2
plz chek -
December 7, 2008 at 1:40 PM
-
Anonymous said...
-
manoj,
m not sure but i thnk da answer to #9 is 5.6 pounds of dry fruit from 100 pounds of fresh fruits
i m nt very confident but plz chek -
December 7, 2008 at 1:41 PM
-
Anonymous said...
-
manoj, da answer 2 #1 is 48 pounds.
sorry for da mistake above.
plz correct if wrong -
December 7, 2008 at 1:41 PM
-
Anonymous said...
-
congrats SREEKANTHROCKS for a detailed soln..........everyone will appreciate this for next set of updates also.....pls do provide soln...... but for Q1 i think ans is 21 or 63 and for Q2 ans C..........pls check.......correct me if i'm wrong........
-
December 7, 2008 at 1:42 PM
-
Anonymous said...
-
HELLO @@@@tuffgre@@@@
thanks 4r making the correction.u r r8 with the #1 qstn.
but plz verify the #7.....4 consect no....X,X+1,X,+2,X+3
so mean=(X+(X+1)+(X+2)+(X+3))/4
=(4X+6)/4
=X+3/2 -
December 7, 2008 at 1:42 PM
-
Anonymous said...
-
HELLO @@@1400mytrgt@@@
THANKS 4R MAKING THE CORRECTION......u r rt.....it is 34...so ans is C........ -
December 7, 2008 at 1:42 PM
-
Anonymous said...
-
HI @@@@manoj
so the probs will b solvd in the following way
A=(P*N*R%)
AS per the probs A=20P....
20P=(P*N*R%)
N=1yr
so R%=20
SO THE ANS WILL b..A IS GREATER -
December 7, 2008 at 1:42 PM
-
Anonymous said...
-
1.total number of eights in two and three fourth is
A 11
B 12
C 22
D 24
E 26
2. the roots of the equation X^2-3(2m+4)X+m^2+18m+11=o are reciprocal of each other than the possible values of m are------
3.a gardener sets 180 plants in rows.each row aontain the same number of plants \. if there were 40 more plants in each row
,the ardener wood need 6 fewer rows.how many rows are there answer is 9 but how pls expalin-------
4. some clay is shaped into a sphere with a radius of 2 inches . if more clay is added tothe ariginal sphere
so that radius is increased by 4inches, then the volume of new sphere is how many times greater than the volume of old sphere----
answe is 208 pla explain....
5. if a coin is tosses 25 times
cloA probablity of getting 9 heads
colB probablity of getting 10 heads
6. a man is born on the month of febrauary
COLA probablity of being born on sunday if it is leap year
COLB probablity of being born on sunday if it is not leap year
7. set a contains 20 diffrent natural numbers
COLA probablity of selecting one of the nos.from setA
colB probablity of selecting median of the 20 natural nos.from set A -
December 7, 2008 at 1:43 PM
-
Anonymous said...
-
manoj,
1.22
2.?
3.?
4.8 times the old volume
5.B
6.D
7.C
plz correct if wrng. -
December 7, 2008 at 1:43 PM
Shoot On Sight is an entertaining drama that addresses racism, politics, .. and terrorism.. It isn�t preachy � just fascinating.. But in the end it pays off as a good, old fashioned police thriller
17 comments:
9.fresh fruit contains 72%water and dryfruit contains 20% water .how much dry fruit from
100 popunds of fresh fruit can be obtained
10. during a year factory increased the output twice by the same percent of x in the begining 600 articles
were produced per month finally 726
cola x%
colb 10%
11.a man buys land and pays 20 times its annual rent
cola rate%
colb 5%
12.some birds settled on the branches of a tree. first, they sat one to a branch and there was
one bird to many. next theysat two to a branch too many. how many branches were there.
A 5
B 4
C 3
D 6
E 7
13.pan s is used to hold measuring weights ans pan R is used to holds object to be weighted.what is the least
numbber of weights of whole number denomination that can be used to balance any whole number weight less than 64.
A 4
B 5
C 6
D 15
please explain 9 10 11 12 13 with explanations thanxxxx
1.B&C
2.C
3.3*pi*x^2/4
4.5
5.2^(-1/3) - 3^(1/3)
6. 1
1 c
2 c
3 11x^2/16
4 5
5 -5/2
6 11
7 x+ 3/2
8 multible values
cud u pls explain Q5
1) N=93
so N>90 or N>50
so both the options are true
2) As per the series.....the 67th number is 35
so A is greater
3) we dnt hav anything to do with area of a asquare or area of unshaded region......the sol is obtaind by calculating the area of unshaded area alone
it can be done =(area of a circle-area of the arc)
=pi(r*r)/2 - (angle/360)*pi(r*r)
HERE r=x/2 and angle=45deg
4) 9a+3b+c=25
=> 9*2+3*2+1=25
=> a=2,b=2,c=1.
=> a+b+c+=5
5) s(n)=1/3 for even n s(n)=-1/3 for odd values of n.....so 2^(-1/3)-3^(1/3)
6) 1feet=12 inches
so length = 48*12=576inch n width=10*12=120....
so nof tiles =576*120=1080
so 4r pack dr will b 100tiles.....
so no of packs 4r 1080 are approximately=11
7)as it is given x*y>0...it implies dt x&y are either +ve or -ve....
it is also given dt y>0
so x must also b a +ve number so we will gt many no.of solutions......
CORRECT ME IF I AM WRONG...THANK U
NUMBERS WRONGLY ORDERD
IF A 4GT THE 7TH.....SO SEE DT THE ans GIVEN TO 7TH IS THE ANS 4R 8TH QSTN.....
7TH ANS IS .........four consecutive numbers...least is X....
so the numbers are......X,X+1,X+2,X+3.
so the mean is X+3/2
@@@@ manoj
9) sorry dude i didnt gt it
10) x%=10.5%.....so A is corrct to it.
(600*10.5)/100 = 63
63*2 = 126.........so 600+126=726
11) A=(P*N*R)/100
HERE IN D PROBLM A=2P.....N=1.....
SO R=200....SO R%=2%
12) I THINK THE DATA IS INSUFFICIENT...U SHLD HAV GIVEN NO.OF BIRDS...I THINK
13) SORRY I DID NT GT D ANS 4R DS TOOO....
THANKS DUDE...PLZ SAY ME D ans IF ANY ONE GTS
@@@MANOJ
12) IF DR ARE 6 BIRDS AND IF THERE ARE 5 BRANCHES THEN TWO BRANCHES WILL B LEFT IF BIRDS SIT TWO TO A BRANCH....I THINK U GT THE ANS.........
hello sreekanth,
plz check #1 i thnk da answer is N=21 or 63 and not 93.double means 2 times and not square. so da most valid answer is 30< N or N >50.
#8 i am getting (4x+6)/4=2(2x+3)/4 = 2x+3/2
plz chek
manoj,
m not sure but i thnk da answer to #9 is 5.6 pounds of dry fruit from 100 pounds of fresh fruits
i m nt very confident but plz chek
manoj, da answer 2 #1 is 48 pounds.
sorry for da mistake above.
plz correct if wrong
congrats SREEKANTHROCKS for a detailed soln..........everyone will appreciate this for next set of updates also.....pls do provide soln...... but for Q1 i think ans is 21 or 63 and for Q2 ans C..........pls check.......correct me if i'm wrong........
HELLO @@@@tuffgre@@@@
thanks 4r making the correction.u r r8 with the #1 qstn.
but plz verify the #7.....4 consect no....X,X+1,X,+2,X+3
so mean=(X+(X+1)+(X+2)+(X+3))/4
=(4X+6)/4
=X+3/2
HELLO @@@1400mytrgt@@@
THANKS 4R MAKING THE CORRECTION......u r rt.....it is 34...so ans is C........
HI @@@@manoj
so the probs will b solvd in the following way
A=(P*N*R%)
AS per the probs A=20P....
20P=(P*N*R%)
N=1yr
so R%=20
SO THE ANS WILL b..A IS GREATER
1.total number of eights in two and three fourth is
A 11
B 12
C 22
D 24
E 26
2. the roots of the equation X^2-3(2m+4)X+m^2+18m+11=o are reciprocal of each other than the possible values of m are------
3.a gardener sets 180 plants in rows.each row aontain the same number of plants \. if there were 40 more plants in each row
,the ardener wood need 6 fewer rows.how many rows are there answer is 9 but how pls expalin-------
4. some clay is shaped into a sphere with a radius of 2 inches . if more clay is added tothe ariginal sphere
so that radius is increased by 4inches, then the volume of new sphere is how many times greater than the volume of old sphere----
answe is 208 pla explain....
5. if a coin is tosses 25 times
cloA probablity of getting 9 heads
colB probablity of getting 10 heads
6. a man is born on the month of febrauary
COLA probablity of being born on sunday if it is leap year
COLB probablity of being born on sunday if it is not leap year
7. set a contains 20 diffrent natural numbers
COLA probablity of selecting one of the nos.from setA
colB probablity of selecting median of the 20 natural nos.from set A
manoj,
1.22
2.?
3.?
4.8 times the old volume
5.B
6.D
7.C
plz correct if wrng.
Post a Comment