Question discussion

Two numbers are such that the ratio between them is 4 : 7. If each is increased by 4, the ratio becomes 3 : 5. The larger number is

Correct answer: C

Explanation

Let the numbers be 4x and 7x. (4x + 4)/(7x + 4) = 3/5 gives 20x + 20 = 21x + 12, so x = 8. The larger number is 7 x 8 = 56.

Nobody has replied yet. Start the discussion!