1.

The cost of 1 litre petrol is rs 72 3/4.find the cost of 2 1/2 litre petrol

Answer»

By applying Unitary method,
Cost of 1 litre = Rs. 72/-
=>Cost of 21/2 litre = 72 × 2 ÷ 21 = Rs. 6.857142857143.


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