Multiple choice

A can finish a work in 16 days and B can do same work in half the time taken by A. Then, working together, what part of same work they can finish in a day?

  1. 3/8

  2. 3/32

  3. 3/16

  4. 3/40
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A takes 16 days. B takes 8 days. A's rate = 1/16. B's rate = 1/8 = 2/16. Combined rate = 1/16 + 2/16 = 3/16.

AI explanation

Using the efficiency formula, A's daily work is 1/16 and B takes half that time, so B's daily work is 1/8. Adding these fractions gives 1/16 + 2/16, which equals 3/16. Therefore, working together they finish 3/16 of the work in a single day.

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