Question : A worker completes $\frac{3}{5}$th of a task in 12 days. In how many days will he complete $\frac{3}{4}$th of the task?
Option 1: 18
Option 2: 20
Option 3: 16
Option 4: 15
Correct Answer: 15
Solution :
Given: A worker completes $\frac{3}{5}$th of a task in 12 days.
So, he completes the whole task in = $\frac{12}{\frac{3}{5}}$ = 20 days
To complete $\frac{3}{4}$th of the task, he will take $20\times \frac{3}{4}$ = 15 days
Hence, the correct answer is 15 days.
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