Two numbers are in the ratio 1:2. If 7 is added to both, their ratio changes to 3:5. The greatest number is :

A 24
B 26
C 28
D 32

Correct Answer: 28

Hints : The difference between the two numbers remain the same 1 : 2 = 2 : 4 ( maintain same difference between the two ratio) Increase is 1 unit so, 1 unit 7. Biggest number is 4 units, hence it is 7 × 4 = 28
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