Question

Gary’s motorbike uses petrol.
Gary needs to mix oil with the petrol.
He mixes oil and petrol in the ratio 1 :14 by volume.
Gary is going to ride his motorbike 3000 miles.
Each 20 miles he rides uses 1 litre of the oil and petrol mixture.
A 500 ml bottle of oil costs £3.99
Work out the total cost of the bottles of oil Gary needs to buy.

Answer 1

Answer:

dfzvfldyosoudcufuv vcufufufptut

Answer 2

Answer:

£79.80

Step-by-step explanation:

Number of litres of the mixture he needs = 3000/20

= 150 litres which contains 150/15 =  10 litres of the oil.

500 ml = 1/2 litre costs £3.99 so 1 litre costs £7.98.

So the total cost of the bottles of oil = 7.98*10

= £79.80