January - 7th - GRE Questions - Quant

January - 7th - GRE Questions - Quant

1. Probability that it will rain on monday and not on tuesday is 0.4 Probability that it will rain on tuesday and not on monday is 0.2.

Cola: Probability that it will not rain on both the days
Colb: 0.35
Ans: A

2. Tom , Dick and Harry went for lunch to a restaurant. tom had $100 with him, Dick had $60 and harry had $409. They got a bill for $104 and decided to give a tip of $16. they further decided to share the total expenses in the ratio of the amount of money each carried. The amount of money which Tom paid more that what harry paid is
A. 120
B. 200
C. 60
D. 24
E. 36
Ans:C

3. Two pipes A nd B can fill a tank in 8 hrs, another pipe c can fill the same tank in 3 hrs. What is the time taken to fill the tank if A,B and C are opened.?
Ans: 24/11 hrs

4. Given equation 2x+3y=1

col a: x intercept of the line

col b: 1/3
Ans: A

5. Two boats start at the same point. Boat X travels due north at 3 miles per hr and boat Y travels due east at a rate of 4 miles per hour.At what time will the 2 boats be 10 miles apart.?
Ans: 1hr 20mins

6. Given 7,8,13,13,9,14,15,15,15,19 is the series and if another no. 15 is added. Which will be affected most

A) Mean B)Median C) Mode D) None
Ans: B

7. There are 20 coloured pencils in a pencil stand. The probability of choosing a yellow pencil is 0.8.There are 6 yellow pencils without an eraser. What is the probability that a yellow pencil chosen is that with has an eraser.?
Ans is D... (If question is given as 20 YELLOW coloured pencils instead of 20 coloured pencils then the answer will be 0.5)

8. In a company A can make 50 pots per hour and B can make 60 pots per hr.

col a: total number of pots made by A

col b: total number of pots made by B
Ans: D

9. Roger sold a watch at a profit of 10%. If he had bought it at 10% less and sold it for $13 less he would have made a profit of 15%. What is the cost price of the watch?
A) $220
B) $300
C) $400
D) $480
E) $540
Ans: A

10. The number of ways in which 8 different flowers can be seated to form a garland so
that 4 particular flowers are never seperated is :
A) 4!4!
B) 288
C) 8!/4!
D) 5!4!
E) 8!4!
Ans: D

11. The number of 5 digit telephone numbers having atleast one of their digits repeated is
A) 90000
B) 100000
C) 30240
D) 69760
E) 69000
Ans: D