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JAMB Mathematics 2016 Paper

Question : 36

Total: 50

Solution:

Concept:

Use the unitary method to find petrol needed per kilometre and then multiply by the total distance.

Explanation:

The car uses 45 litres for 120 km.

Petrol used per km is

\frac{45}{120}

litres.

Simplify:

\frac{45}{120} = \frac{3}{8}

litres per km.

For 600 km, petrol needed is

\frac{3}{8} \times 600 = 225

litres.

Answer:

C. 225 litres.

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