Question

If $5$ men or $7$ women can earn Rs. $875$ per day, how much would $10$ men and $5$ women earn per day ?

Answer 1

$5$ men or $7$ women can earn Rs $875$ per day
It means that $5$ men = $7$ women i.e $1man=\frac{5}{7}$ woman
Hence $10$ men and $5$ women =$10\times \left(\frac{7}{5}\right)+5$
=$19$ women

$7$ women can earn = Rs $875$ per day,
$1$ women can earn = Rs$\frac{875}{7}$
=$125$ per day

Then $19$(i.e $10$ men and $5$ women) women will earn =Rs $125\times 19$
= Rs $2375$ per day