A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, Then how old is B?

If 35% of a number is 12 less than 50% of that number, then the number is :

If selling price is doubled, The profit triples. Find the profit percent.

The ratio of three numbers is 3 : 4 : 5 and the sum of their squares is 1250. The sum of the numbers is :

X and Y invested in a business. They earned some profit which they divided in the ratio of 2 : 3. If X investe...

If 5 men and 9 women can do a piece of work in 19 days, then in how many days will 3 men and 6 women do the sa...

A person travels form P to Q at a speed of 40 kmph and returns by increasing his speed by 50%. What is the ave...