Question

The length of a rectangular hall is $5\mathrm{metres}$ less than $4$ times the breadth of the Hall. what is the length, if the breadth is $\mathrm{b}\mathrm{metres}$?​

Answer 1

Given the breadth of the hall $=\mathrm{b}$

$4$times the breadth$=4\times \mathrm{b}=4\mathrm{b}$

According to the question,

Thus, length of the hall $=4\mathrm{b}-5$