Question

Sabir finished his homework in $\frac{3}{15}$ hr. Atul finished his homework in $\frac{1}{3}$ hr. Who took less time to finish their homework? How much less is it?

Answer 1

Time taken by Sabir to finish his homework $=\frac{3}{15}$ hr

$=\frac{3}{15}\times 60$ minutes

$=12$ minutes

Time taken by Atul to finish his homework $=\frac{1}{3}$ hr

$=\frac{1}{3}\times 60$ minutes

$=20$ minutes

So, Sabir took less time to finish his homework, which is less than Atul by

$=20-12$ minutes

$=8$ minutes