Jack has €80 in denominations of €1, €2 and €5. He went to a fare, where he played a shooting game. He paid €1 for each attempt and won a € 2 coin for each successful shot. The amount he won is 2/3 times more than what he spent. If at any point of time he had at least 20% of the amount with him in the denominations of €1, then find the least possible number of €1 coins he had initially.
The answer if supposed to be 23, but I couldnt solve it. Also I believe the answer choices may be wrong (it happened in many questions) so dont rely on the answers given.