If it costs £55 to transport 20 pickets what will be the cost of transporting 35 pickets?

put the problem in this form

£55 -> 20 pickets

x -> 35 pickets

x = (35*55)/20 = £96.25

If the cost was £137.50 how many pickets were transported?

£55 -> 20 pickets

£137.5 -> x

x = (137.5*20)/55 = 50 pickets

hope that helps