UP TGT Mathematics Commercial Mathematics Test Series - Part 4
A can do a piece of work in 20 days, B in 30 days, and C in 60 days. A works every day, while B and C assist A on every...
Type: MCQ • Marks: 1
A can do a piece of work in 20 days, B in 30 days, and C in 60 days. A works every day, while B and C assist A on every third day. In how many days will the work be completed?
Options
A. 1) 15 days
B. 2) 18 days
C. 3) 16 days
D. 4) 12 days
Explanation
Total work = 60 units. Daily work: A = 3, B = 2, C = 1. Day 1: A (3), Day 2: A (3), Day 3: A+B+C (3+2+1=6). 3-day work = 3 + 3 + 6 = 12 units. Days required = (60 / 12) * 3 = 15 days.
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