Question

The ratio between two numbers is 2:3. If each number is increased by 6, the ratio between then become 4:5, find the difference between numbers.

A 4 Correct Answer Incorrect Answer
B 3 Correct Answer Incorrect Answer
C 2 Correct Answer Incorrect Answer
D 5 Correct Answer Incorrect Answer
E 6 Correct Answer Incorrect Answer

Solution

Let first number be 2x and the second number is 3x.
According to the question,
=> (2x + 6)/(3x + 6) = 4/5
=> 10x + 30 = 12x + 24
=> x = 3
Required difference = 3x – 2x = x = 3

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