Question

Working $5$ hours daily. Shaheed can embroider $3$ sarees in $21$ days. How many will it take for him to embroider $6$ sarees working $7$ hours daily?

Answer 1

While working for $5hours$ daily shaheed embroider

$3$ sarees in $21days.$

Then by working for $10$ hours daily shaheed

embroider $6$ sarees in $42days.$ (Just double).

so, $5hours$ work in $42days$. and

$7hours$ work in $??$ days.

$=\frac{5}{7}\times 42$

$=30days.$