Year 10 Interactive Maths - Second Edition

Problem Solving

Example 11

If the number of litres of petrol used by a car varies directly as the distance travelled and the car uses 16 litres of petrol on a trip of 80 km, how many litres will it use on a trip of 235 km?

Solution:

Let the number of litres used and the distance travelled in kilometres be denoted by n and d respectively.

Study Another Topic in Chapter 17: Variation

[ Ratios ] [ Finding the Ratio of Two Quantities ] [ Dividing a Quantity in a Given Ratio ] [ Rates ] [ Variation ] [ Problem Solving ] [ Variation as the Square, Cube or Square Root ] [ Part Variation ] [ Inverse Variation ] [ Problem Solving ] [ Symbols ] [ Index ]