Question

A drum of petrol is 3/4 full . When 30 litres of oil is drawn from it , it is 7/12 full . Find the capacity of the drum

Answer 1

Answer:

Capacity of the drum is 180 litres.

Step-by-step explanation:

Let the capacity of drum is x litres

$\frac{3x}{4} - 30 = \frac{7x}{12} \\ = > \frac{3x}{4} - \frac{7x}{12} = 30 \\ = > \frac{9x - 7x}{12} = 30 \\ = > 2x = 360 \\ = > x = 180litres$Thank You.

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