Exams › SSC CGL (Prelims) › General

Simplify the expression: ( (0.12)^3 + (0.04)^3 ) / ( (0.36)^3 + (0.12)^3 ).

1. 1/3
2. 1/9
3. 1/27
4. 1/81

Correct answer: 1/27

Solution

Since 0.36 = 3*0.12 and 0.12 = 3*0.04, the denominator equals 3^3 times the numerator. Thus the ratio is 1/3^3 = 1/27.

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