Multiple choice

Kashish and Vibhu work in a milk firm. Kashish completes an assigned task in 32 days. Vibhu is 60% more efficient than Kashish. Find out the number of days taken by Vibhu to do the same task.

  1. 5

  2. 15

  3. 20

  4. 25

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Kashish takes 32 days. Vibhu is 60% more efficient, meaning Vibhu's efficiency is 1.6 times Kashish's. Days taken by Vibhu = 32 / 1.6 = 20 days.

AI explanation

Since Vibhu is 60 percent more efficient than Kashish, the ratio of their efficiencies is 1 to 1.6. Because time taken is inversely proportional to efficiency, Vibhu takes 1 divided by 1.6 of the time Kashish takes. Multiplying this by Kashish's time gives 32 multiplied by 10 divided by 16, which equals 20 days.

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