RS Aggarwal Solutions Class 7 Mathematics Solutions for Unitary Method Exercise 9A in Chapter 9 - Unitary Method

Question 5 Unitary Method Exercise 9A

A car can cover a distance of 357km on 42 liters of petrol. How far can it travel on 12 liters of petrol?



From the question,

The distance cover by car on 42 liters of petrol = 357km

The distance cover by car on 1 liter of petrol = (357/42) km

∴The distance cover by car on 12 liters of petrol = (357/42) × (12)

= 102 km

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