Question

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

Answer 1

$1$st part

We have,

Worker $W_1=5$

Weed a field in days$=D_1=12days$

If,

Take worker $W_2=6$

Then, Days $D_2=?$

Then, we know that,

$W_1{D}_1=W_2{D}_2$

$5\times 12=6\times D_2$

$D_2=\frac{5\times 12}{6}$

$D_2=10days$

$2$nd Part,

If worker$W_3=15$

Then,

Days $D_2=?$

Then, we know that,

$W_1{D}_1=W_3{D}_3$

$5\times 12=15\times D_3$

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

$D_3=4days$

Hence, this is the answer.