Question discussion

Two numbers are in the ratio 3 : 4. If 6 is added to each, the ratio becomes 4 : 5. What is the sum of the original numbers?

Correct answer: A

Explanation

(3x + 6)/(4x + 6) = 4/5 gives x = 6, so the numbers are 18 and 24 and their sum is 42.

Nobody has replied yet. Start the discussion!