SSC MTS & Havaldar 2014 · Question 55 of 82

P is twice as good a workman as Q and together they finish a piece of work in 20 days. In how many days will P alone finish the work ?

A30 daysCorrect
B25 days
C40 days
D35 days

Answer: A. 30 days

Explanation

Let Q's efficiency = x units/day => P's efficiency = 2x units/day Together they finish the work in 20 days. => Total work = 20 × (x + 2x) = 20 × 3x = 60x units 60x ∴ Days taken by P alone to finish the work = 2x = 30 days

Source: Solved SSC MTS 23 February 2014 Shift 1 Paper with Solutions · reliable-secondary

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