Question

Chander takes $9\frac{2}{5}$ minutes to walk across the park. Raj takes $20\frac{1}{5}$ minutes. Who takes less time and by how much?

Answer 1

Who takes less time and by how much

Chander takes $9\frac{2}{5}$ minutes which is equal to $\frac{47}{5}minutes$

Raj takes $20\frac{1}{5}$ minutes which is equal to $\frac{101}{5}minutes$

It is clear that $\frac{101}{5}>\frac{47}{5}$.Therefore Chander takes less time.

$$\begin{gathered} \frac{101-47}{5} \\ =\frac{54}{5} \end{gathered}$$

Chander takes $\frac{54}{5}minuteslessthanRaj$