Question

The cost of 5 whole 1 by 4 litres of petrol is rupees 315. Find the cost of 1 litre of petrol.​

Answer 1

Step-by-step explanation:

Given, Cost of

$5 \frac{1}{4} = \frac{21}{4} litres \: of \: petrol = 315rupees$

Therefore, The cost of 1 litre of petrol is

$\frac{21}{4} \div 315$

$\frac{21}{4} \times \frac{1}{315}$

$\frac{7}{4} \times \frac{1}{105}$

$\frac{1}{4} \times \frac{1}{15}$

$\frac{1}{60}$

Hence, the cost of

$cost \: 1 \: litres \: of \: petrol \: = \frac{1}{60} rupees$