Question

$20$ workers working for $5$ hours a day complete a work in $10$ days. If $25$ workers are employed to work $10$ hours a day, what is the time required to complete the work?

• A. $4$ days
• B. $5$ days
• C. $6$ days
• D. $8$ days

Answer 1

The correct option is A $4$ days

We know that,
$M_{}{D}_1{H}_1=M_2{D}_2{H}_2$
20 $\times$ 5$\times$ 10 = 25 $\times$ 10 $\times D_2$
$D_2$ = 4 days.