Question

What number has to be added to each term of 2:3 to make the ratio 4:5?

A 9 Correct Answer Incorrect Answer
B 2 Correct Answer Incorrect Answer
C 7 Correct Answer Incorrect Answer
D 3 Correct Answer Incorrect Answer

Solution

Let the number to be added be x. According to the question, => (2+x)/(3 + x) = 4/5 => 10 + 5x = 12 + 4x => x = 2

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