Question:
Jane, Ken and Leo decided to contribute some money to buy a present for their mother. Jane agreed to contribute 30% of the cost of the present while Ken agreed to pay 40% of the remaining amount. The rest of the price of the present will be paid by Leon.
However on the shopping day, they realised, the price of the item had increased by 25%. Jane paid $36 for her share in the end.
(a) What was the original price of the present?
(b) How much did Leon have to pay for the present in the end?