2nd september GRE Quants Que

1. The telephone question which appeared in the previous threads
2. col a 3^50 colb 2^25
3. s={1 2 3 4 5 } t={6 7 8 9 10} when the values in s added with t how many different values will be formed..
4. 6 bicylists has to be chosen from 4 adult and 4 children
cola: how many 3 adult and 4 children teams can be formed
colb : How many 2 adult and 2 chldren teams can be formed
5. It take 1 litre of enamel to paint 16 sq mtrs. Then how much litres of enamel is required to paint 64 cubic metrs.

6. if a line m has points (2,1) and l is the line parallel to m
col a: slope of the line m
col b: slope of the line l

7. if ky+mx=4 and the point is (2,3)
col a k
col b 1

I didnt get any problems related with circles.