Question

The area of a rectangular field is 11.025 square metre. If its breadth measures 4.5 metre, then calculate its length.

• A. 2.85 m
• B. 0.245 m
• C. 2.45 m
• D. 2.085 m

Answer 1

The correct option is C

2.45 m

Area of rectangle = length x breadth

Length = $\frac{area}{breadth}$

Length = $\frac{11.025}{4.5}$
= $\frac{11.025\times 10}{4.5\times 10}$

= $\frac{110.25}{45}$

We can calculate 110.25 $÷$ 45 by dividing 11025 $÷$ 465 and placing the decimal after two digits from right since,
Number of digits after decimal in 110.25 = 2
$\therefore \frac{11025}{45}$ = 245 m
Hence,$\frac{110.25}{45}$ = 2.45 m