Question

A carpet is $30m75cm$ long and $80cm$ wide. Find its cost at $Rs.150$ per square metre.

Answer 1

Length of the carpet $=30m75cm$

$=(30+0.75)cm$ $(100cm=1m)$

$=30.75m$

Breadth of the carpet $=80cm$

$=0.80m$ $(100cm=1m)$

Area of carpet $=($ Length $\times$ breadth $)$ sq units

$=(30.75\times 0.80)m^2$

$=(\frac{3075}{100}\times \frac{80}{100})m^2$

$=24.6m^2$

Cost of $1m^2$ carpet $=Rs.150$

Cost of $24.6m^2$ carpet $=Rs(24.6\times 150)$

$=Rs.3690$