Question

A factory produces bikes at the following rate:


The number of bikes produced in 7 hours will be _______

• A. 54
• B. 72
• C. 63
• D. 81

Answer 1

The correct option is C 63


$\text{For every 18 bikes 2 hours is taken.}$

$\text{For every 27 bikes 3 hours is taken.}$

$\text{The number of bikes is 9 times the}\text{number of hours taken.}$

$\therefore \text{In every 1 hour 9 bikes are produced.}$

$⟹\text{Number of bikes produced in}\text{1 hour}=\frac{9}{1}$

$\therefore \text{Number of bikes produced in 7 hours}=\frac{9\times 7}{1}=\frac{63}{1}=63$