The ratio of age of two boys is 5 : 6. After two years the ratio will be 7 : 8. The ratio of their age after 12 years wi…

The weights of two persons A and B are in the ratio of 3 : 5. A's weight increases by 20% and the total weight of A and…

If m : n = 3 : 2, then (4m + 5n) : (4m - 5n) is equal to = ?

If A : B = 1 : 2, B : C = 3 : 4, C : D = 6 : 9 and D : E = 12 : 16 then A : B : C : D : E is equal to = ?

A person bought some rice and wheat for Rs. 380. The ratio of weight of rice and wheat is 4 : 3 and the price equal amo…

25% of A's income is equal to 35% of B's income. The ratio of the incomes of A and B is -

What must be added to each term of the ratio 7 : 11, So as to make it equal to 3 : 4?

If A varies directly proportional to C and B also varies directly proportional to C, which one of the following is not c…