Question

Jim is thinking of buying solar panels. The price of these panels haas decreased by 27% since 2016. Jim would need to pay £4803.40 for the panels now. How much would the panels have cost in 2016? 3 marks.

Answer 1

let the price in 2016= Y

Then the price since 2016 ( since the price decreased since 2016)= (1- 27/200)Y= 0.73Y

2016 since 2016

Y 0.73Y

Y now: 4803.40

0.73Y= 4803.40

Y= 4803.40/0.73

= 6580

the cost of the panel in 2016 is 6580