A can finish a work in 18 days and B can do the same work in half the time…
2024
A can finish a work in 18 days and B can do the same work in half the time taken by A. Then, working together, what part of the same work they can finish in a day?
- A.
1/5
- B.
1\6
- C.
1/9
- D.
1/2
Attempted by 23 students.
Show answer & explanation
Correct answer: B
Answer: 1/6
Step 1: A finishes the work in 18 days, so A's one-day work = 1/18.
Step 2: B takes half the time of A, so B's time = 18/2 = 9 days. B's one-day work = 1/9.
Step 3: Combined one-day work = 1/18 + 1/9 = 1/18 + 2/18 = 3/18 = 1/6.
Therefore, working together they complete 1/6 of the work in one day.