The sum of the present ages of a father and his son is 60 years . Six years ago, father's age was five times the age of the son. After 6 years, son's age will be -

The sum of two numbers is 22 and the sum of their squares is 404, then the product of two numbers is -

In a class , the number of girls is 20% more than that of boys. The strength of the class is 66. If 4 more gir...

If x: y =5:2 , then (8x+9y) : ( 8x +2y) is

Two number are in the ratio 3:5 . If 9 is subtracted form each , the new numbers are in the ratio 1223. The sm...

A monkey climbs a 60 m high pole.s In first minute he climbs 6 m and slips down 3 m in the next minute. How mu...

Two trains 105 meters and 90 meters long, run at the speeds of 45 km/h and 72 km/h respectively , in opposite...