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