Multiple choice

Raman is 25% more efficient than Aman. If Aman can complete a piece of work in 25 days, then Raman can complete the same work in how many days?

  1. 12

  2. 15

  3. 16

  4. 20
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

If Raman is 25% more efficient than Aman, their efficiency ratio is 1.25 : 1, or 5 : 4. Since time taken is inversely proportional to efficiency, if Aman takes 25 days, Raman takes (4/5) * 25 = 20 days.

AI explanation

Since Raman is 25% more efficient, the ratio of their efficiencies is 125 to 100, or 5 to 4. The ratio of time taken is the inverse, 4 to 5. If Aman takes 25 days, Raman takes 25 multiplied by 4 and divided by 5, which equals 20 days.

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