Question 828285: Last year Mr. Taylor travelled 15,000 km in his car and spent £1200 on petrol. This year he expects to travel 20,000 km. He estimates that the price of petrol has increased by 10% on what is was last year.
How much should Mr. Taylor expect to pay for petrol this year?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Last year Mr. Taylor travelled 15,000 km in his car and spent £1200 on petrol. This year he expects to travel 20,000 km. He estimates that the price of petrol has increased by 10% on what is was last year.
How much should Mr. Taylor expect to pay for petrol this year?
-----
unit cost last year = 1200/15000 = 0.08L per km
-------
New cost would be 1.1(0.08)L/km = 0.088L/km
-----
Ans: 20,000(0.088) = 1760L
===============================
Cheers,
Stan H.
===================
|
|
|
