Question

A bus travels 500 km with 70 litres of petrol. The distance covered by the bus consuming 7 litres of petrol is __.

• A. 30 km
• B. 40 km
• C. 50 km
• D. 60 km

Answer 1

The correct option is C

50 km

Given,

Distance travelled by bus with 70 litres of petrol = 500 km
Using the unitary method in which first we find the value of one unit and then the value of the required number of units.
Distance travelled by bus with 1 litre of petrol
= $\frac{500}{70}km$
$\therefore$ Distance travelled by bus with 7 litres of petrol
= $\frac{500}{70}\times 7=50km$

Hence, the bus travel 50 km with 7 litres of petrol.