Question
Lynn bought 5 kg of pineapples at $r per kg and 4 kg of papayas at $3r per kg.
  1. Find the amount that she paid for the fruits in terms of r.
  2. If r = 5, how much change did Mrs Lynn receive if she paid the fruit seller with a $100 note?
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Lynn bought 5 kg of pineapples at $r per kg and 4 kg of papayas at $3r per kg.
  1. Find the amount that she paid for the fruits in terms of r.
  2. If r = 5, how much change did Mrs Lynn receive if she paid the fruit seller with a $100 note?