Question

Lokesh is looking to buy a car. He has four options:

1) Car 1 can travel 400km in 20 litres of petrol.
2) Car 2 can travel 200 km in 5 litres of petrol.
3) Car 3 can travel 300 km in 10 litres of petrol.
4) Car 4 can travel 500 km in 25 litres of petrol.

Which car should he buy?

• A. Car 1
• B. Car 2
• C. Car 3
• D. Car 4

Answer 1

The correct option is B Car 2

For Car 1,
Distance covered in 20 l = 400 km
$\therefore$ In 1 litre of petrol, Car 1 can cover $\frac{400}{20}=20km$

For Car 2,
Distance covered in 5 l = 200 km
$\therefore$ In 1 litre of petrol, Car 2 can cover $\frac{200}{5}=40km$

For Car 3,
Distance covered in 10 l = 300 km
$\therefore$ In 1 litre of petrol, Car 3 can cover $\frac{300}{10}=30km$

For Car 4,
Distance covered in 25 l of petrol = 500 km
$\therefore$ In 1 litre of petrol, Car 4 can cover $\frac{500}{25}=20km$

Since, Car 2 covers the maximum distance in 1 litre of petrol, Lokesh should buy Car 2.