A basketball team won 4 more matches than it lost. If it won 3/4of its matches how many matches did it play?

1)  10

2)  15

3)  8

4)  25

The third term of G.P. is 3. The product of first five term is.

(1) 9ã9

(2) 729

(3) 243

(4) 81ã3

A father can do a job as fast as his two sons working together. If one son does the job in 3 hours and the other in 6 hours, how many hours does it take the father to do the job?.

1) 1

2) 2

3) 3

4) 4