Exercise 6

coal on shovel

More on coal

When you are an inspector it will be very useful if you can work out how much it costs to run a preserved railway.

Coal costs £60 per tonne.

Question 1: If Lady Ingrid used 100kg of coal per hour, what would this cost?

Question 2: If Lady Ingrid's bunker held 400kg of coal, what would it cost to fill the bunker?

Which set of answers is correct?

set A   1:  £60   2:  £240
set B   1:  £6   2:  £24
set C    1:   60p   2:   £2.40

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