Multiple choice

A can do (\frac{1}{2}) of work in 20 days, B can do 10% of work in 10 days and C can do (\frac{1}{3}) of work in 13 days. Who will complete the work first?

  1. A

  2. B

  3. C

  4. Both A and C
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Calculate each person's time to complete full work: A does 1/2 in 20 days, so full work in 40 days. B does 10% in 10 days, so full work in 100 days. C does 1/3 in 13 days, so full work in 39 days. Comparing: C (39 days) < A (40 days) < B (100 days). C completes fastest.

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