Volume of a cylinder=πr^2h
=πx2.5x2.5x12
=πx75
=235.62 cubic inches
£3.99 divided by 8 is £0.49875
Which, changed into pence and rounded up, is 50p.
£2.79 divided by 6 is £0.465
Which, changed into pence and rounded up is 47p.
50p is bigger than 47p
50 subtract 47 is 3p
The second one has the better value for money as it costs 3p less per battery.
706.86 is the answer for the area
