Question

Adam's bike takes 30 minutes to cover 10 miles and his car takes 20 minutes to cover 10 miles. Which of the Adam's vehicle is faster bike or car ?

• A. Bike
• B. Car
• C. Both have same speed
• D. None of the above

Answer 1

The correct option is B Car

Adam's bike covers distance $=10$ miles
and Time taken to cover that distance $=30$ minutes
$\Rightarrow \text{Driving speed of bike}=\frac{\text{Distance covered}}{\text{Time taken}}$
$=\frac{10}{30}$
$=0.33$ miles/minute
His car covers the same distance of 10 miles
and Time taken $=20$ minutes
Now,
$\Rightarrow \text{Driving speed of car}=\frac{\text{Distance covered}}{\text{Time taken}}$
$=\frac{10}{20}$
$=0.5$ miles/minute
Since, $0.5>0.33$.
$\Rightarrow \text{Driving speed of car}>$$\text{Driving speed of bike}$
This means Adam's car is faster then his bike.