Exams › SSC CGL (Prelims) › General

If 20% of P equals 15% of Q equals 12% of R, determine the ratio P : Q : R.

1. 3 : 4 : 5
2. 5 : 4 : 3
3. 15 : 20 : 12
4. 4 : 5 : 6

Correct answer: 3 : 4 : 5

Solution

Setting 0.20P = 0.15Q = 0.12R = k gives P:Q:R = (1/20):(1/15):(1/12). Taking the LCM of denominators (60) yields 3:4:5.

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