Question

Brendan Gan is about to drive to Kuala Lumpur from Johor Bahru. The distance from Johor Bahru to Kuala Lumpur is 330 km. Brendan's car can drive 60 miles using 1 gallon of petrol The current petrol costs are RM1.85 per liter. Calculate the total petrol cost for Brendan to drive from Johor Bahru to Kuala Lumpur. Use: (1 gallon = 4.5 liters 1 mile = 1.61 km Round up answer to 2 decimal places (8 marks)​

Answer 1

He will spend RM 28.44.

Explanation:

Each mile has 1.61 km.

So the distance, in miles, is given by:

`(330)/(1.61) = 205`

For 60 miles, he uses 4.5 liters. So, for 205 miles, he will use:

`(205*4.5)/(60) = 15.375`

For the trip, he uses 15.375 liters. Each liter costs RM 1.85. So he will spend:

`15.375*1.85 = 28.44`

He will spend RM 28.44.