Ratio and Proportion - General Questions

Divide Rs. 13,500 between A and B in the ratio 2 : 7. What is A's share?

Two numbers are in the ratio 2 : 5. If 14 is added to each, the ratio becomes 19 : 37. What is the smaller number?

Find the fourth proportional to 3, 11 and 3.

If A : B = 3 : 2 and B : C = 1 : 2, find A : C.

Find the mean proportional between 25 and 25.