Question

5 workers take 12 days to weed a field. How many days would 6 workers take ?How many would 15 ?

Answer 1

Time taken by 5 workers = 12 days
Time taken by 1 worker = 12×5 days
Time taken by 6 workers = 12×5/6 days = 10 days
Time taken by 15 workers = 12×5/15 = 4 days
Answer. Time taken by 6 workers is 10 days.
Time taken by 15 workers is 4 days.

Answer 2

6 workers would take 10 days and 15 workers would take 4 days.

Step-by-step explanation:

Given:

1st part

We have,  

$Worker W_1=5$

Weed a field in days= $D_1=12days$

If,

$Take worker W_2=6$

$D_2=?$

Then we know that,

$W_1D_1=W_2D_2$

$5\times12=6\times D_2$

$D_2=\frac{5\times12}{6}$

$D_2=10 days$

Therfore 6 workers would take 10 days.

Second part,

If,

$Worker W_3= 15$

Then,

$Days D_3=?$

Then we know that,

$W_1D_1=W_3D_3$

$5\times 12=15\times D_3$

$D_3=\frac{5\times 12}{15}$

$D_3=4 days$

Therefore 15 workers would take 4 days.