Question

Rajesh travelled $23.4$ km by bus and $1.81$ km by car. How much distance did he travel in all?

• A. $25.22km$
• B. $25.21km$
• C. $25.12km$
• D. $23.21km$

Answer 1

The correct option is B $25.21km$

Frist, we convert the given decimals into like fractions with denominator as $100$.
$23.4=23.40=\frac{2340}{100}$ [Traveled by bus]

$1.81=\frac{181}{100}$ [Traveled by car]

Total distance he traveled = 23.4 + 1.81

$=\frac{2340}{100}+\frac{181}{100}$

$=\frac{(2340+181)}{1000}$
$=\frac{\left(2521\right)}{100}$
$\therefore 23.4km+1.81km=25.21km$