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Question
A motorbike requires 2 litres of petrol to cover 100 kilometers. How many litres of petrol will be required to cover 250 kilometers? (using unitary method)
Sum
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Solution
To cover 100 km quantity of petrol required = 2 litres
∴ To cover 1 km petrol required = `2/100`
= `1/50` litres
∴ To cover 250 km petrol required = `1/50 xx 250`
= 5 litres
5 litres of petrol required to cover 250 km
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