A tank requires 28 buckets of water to be filled. If each bucket’s capacity…
2019
A tank requires 28 buckets of water to be filled. If each bucket’s capacity becomes 2/5 of its present capacity, how many buckets are required to fill the same tank completely?
Answer: A. 70 — Correct answer: 70 Key wording: “capacity becomes 2/5 of its present capacity” means the new capacity is 2/5 of the old capacity. It does not mean the…
- A.
70
- B.
65
- C.
60
- D.
72
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Show answer & explanation
Correct answer: A
Correct answer: 70
Key wording: “capacity becomes 2/5 of its present capacity” means the new capacity is 2/5 of the old capacity. It does not mean the capacity is reduced by 2/5.
Let the present bucket capacity be B. Then the tank volume is 28B.
New bucket capacity = (2/5)B.
Required buckets: 28B ÷ ((2/5)B) = 28 × 5/2 = 70.
So 70 buckets are required.
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