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ICSE-VIII-Mathematics

10: Direct and Inverse Variations Class 8 Maths

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  • #3
    A truck consumes 28 litres of diesel for moving through a distance of 448 km. How much distance will it cover in 64 litres of diesel?
    Ans : Let the truck cover x km in 64 litres of diesel.

    It is the case of direct variation
    ⇒ x1/y1 = x2/y2 = 28/448 = 64/x
    i.e., 28x = 64 × 448
    ⇒ x = (64 × 448)/28
    ⇒ x = 1024 km