Question

A rectangular room of size $5m\times 35\text{dm}$ is to be carpeted with a carpet $7\text{dm}$ wide. Find the length of the carpet required(in dm).

Answer 1

Area of carpet required $=50\times 35[\because 1m=10\text{dm}]$

$\Rightarrow l\times 7=50\times 35\Rightarrow l=\frac{50\times 35}{7}=250\text{dm}$

Length of carpet $=250\text{dm}$