The semi diameters of bases of two cylinders A and B are in the ratio 3:2 and their heights are in the ratio n:1. If volume of cylinder A is 3 times of volume of cylinder B, then value of n is –

The incomes of A and B are in the ratio 3:2 and their expenditures are in the ratio 5:3. If each saves Rs.1,000, then B's income is -

A bag contains ₹5, ₹2 and ₹1 coins in the ratio of 3 : 4 : 5. The total value of all the coins is ₹2,100. How many coins of ₹5 are there in the bag?

P and Q are in the ratio 5 : 6 and difference of their squares is 99. The value of P is

Two numbers x and y are in the ratio 11 : 13 and their sum is 48. Then y is

If the ratio of the outer and inner perimeters of a circular path is 23 : 22 and the path is 5 m wide, then the diameter of the inner circle will be