12 men can dig a pond in 8 days.

Question:

12 men can dig a pond in 8 days. How many men can dig it in 6 days?

Solution:

Let be the required number of men. Then, we have: 

No. of days 8 6
No. of men 12 x

Clearly, more men will require less number of days to dig the pond.

So, it is a case of inverse proportion.

Now, $8 \times 12=6 \times x$

$\Rightarrow x=\frac{8 \times 12}{6}$

$\Rightarrow x=16$

Therefore, 16 men can dig the pond in 6 days.

 

Leave a comment

Close

Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now