contestada

Asif sees a pair of shoes in Turkey
The shoes cost 210 lira.
Asif does not have a calculator.
He uses £2=7 lira to work out the approximate cost of the shoes in pounds.
(b) Use £2=7 lira to show that the approximate cost of the shoes is £60
(c) Is using £2=7 lira instead of using £1 =3.5601 lira a sensible start to Asif's method
to work out the cost of the shoes in pounds?
You must give a reason for your answer.