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General Test
Numerical Ability
Ratios
If R : S = 5 : 3 and R + S = 96 , then the value of 3(R - S) : (R + S) is?
2 : 7
8 : 5
3 : 4
4 :3
R : S = 5 : 3
3(R - S) : (R + S) = 3(5 - 3) : (5 + 3) = (3 × 2) : 8 = 6 : 8 = 3 : 4