Four years ago, the respective ratio between the age of Ram and that of Sonu, was 4 : 9. Tina is ten years older than Ram. Tina is ten years younger than Sonu. What is Tina's present age? 

Direction (66-70): What should come in place of the question mark(?) in the following number series?

4, 5, 14, 51, ?

What will come in place of question mark ( ? ) in the following series?
656, 352, 200, 124, 86, ? 

A and B started a business with investments Rs 3500 and Rs 2500 respectively. After 4 months C joined with Rs 6000. If the difference between C's share and B's share in the annual profit was Rs 1977, what was the total annual profit? 

The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years the average of the family at the birth of the youngest member was -

A number of friends decided to go on picnic and planned to spend Rs. 108 on eatables. Three of them however did not turn up. As a consequence, each one of the remaining had to contribute Rs 3. extra. The number of them who attended the picnic was: