A car runs 16 km using 1 litre of petrol. How much distance will it cover using $2\frac{3}{4}$ litres of petrol.

Given:

A car runs 16 km using 1 litre of petrol. 

To do:

We have to find the distance covered using $2\frac{3}{4}$ litres of petrol.

Solution:
 Distance covered by the car using $1$ litre of petrol$=16\ km$

Total quantity of petrol $=2\frac{3}{4}$

$=\frac{2\times4+3}{4}$

$=\frac{11}{4}$ litres

Distance covered by using $2\frac{3}{4}$ litres of petrol$=16\ km\times \frac{11}{4}$

$=4\times11$

$=44\ km$

Thus, $44\ km$ distance will be covered by the car using $2\frac{3}{4}$ litres of petrol.