Multiple choice

Albert can finish a work in 18 days and Billy can do the same work in half the time taken by Albert.then working together, what part of same work they can finish in a day1.15 2.16 3.17 4.18

  1. Option 1

  2. Option 2

  3. Option 3

  4. Option 4
Reveal answer Fill a bubble to check yourself
B Correct answer
AI explanation

Since Billy takes half the time of Albert, Billy finishes the work in 18 / 2 = 9 days. Using the standard work formula, Albert's 1-day work is 1/18 and Billy's 1-day work is 1/9. Working together, their combined 1-day work is 1/18 + 1/9 = 1/18 + 2/18 = 3/18 = 1/16. Therefore, they can finish 1/16 of the work in a day, which corresponds to option 2.

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