A car travels $180$ km using $12$ L of petrol. How far can it travel on $20$ L (at the same rate)?

A car travels $180$ km using $12$ L of petrol. How far can it travel on $20$ L (at the same rate)?
  1. $240$ km
  2. $280$ km
  3. $300$ km
  4. $360$ km

Solution

Mileage $= \dfrac{180}{12} = 15$ km/L. Distance for $20$ L $= 20 \times 15 = 300$ km.

Asked in: IMO

Practice more DIRECT AND INVERSE PROPORTIONS questions on Aicharya