Question

$8$ men can finish a piece of work in $40$ days. If $2$ more men join them, the work will be completed in

• A. $30$ days
• B. $32$ days
• C. $36$ days
• D. $25$ days

Answer 1

The correct option is B $32$ days

8 men take 40 days to finish
If two more men join then total number of men = 10

$8$ men finish the work in $=40$ days

$1$ man will finish the work in $=40\times 8$ days [$1$ man will take longer to finish the work that's why we use multiplication]

$10$ men will finish the work in $=\frac{40\times 8}{10}=32$ days [$10$ man will finish the work faster that's why we use division]