CCommunity
Solution
Expression : 60% of 25% of 5/6th of ? = 630
=> $\frac{60}{100} \times \frac{25}{100} \times \frac{5}{6} \times ? = 630$
=> $\frac{3}{5} \times \frac{1}{4} \times \frac{5}{6} \times ? = 630$
=> $\frac{?}{8} = 630$
=> $? = 630 \times 8 = 5040$