Question

If $12$ men or $18$ women can complete a piece of work in $7$ days , then in how many days can $4$ men and $8$ women complete the same work ?

• A. $9$ days
• B. $12$ days
• C. $6$ days
• D. $7$ days

Answer 1

The correct option is A $9$ days

$12$ men $=18$ women
$2$ men $=3$ women
$12$ men or $18$ women can complete a piece of work in $7$ days.
$4$ men and $8$ women $=6+8$ women $=14$ women.
If $18$ women can complete a piece of work in $7$ days.
So, $1$ women can complete a piece of work in $7\times 18$ days.
So, $14$ women can complete a piece of work in $7\times \frac{18}{14}$ days $=9$ days.

Hence, option A.