Hiroshi collects gamecards. Every day, he gets 10 additional new gamecards. On every third day, he gives three cards to his friend, Miki, If Hiroshi starts with eight cards on the first day, on which day will he have exactly 180 cards?[5 marks][20th day]
Day 1 --> 8
Day 2 --> 8 + 10 = 18
Day 3 --> 18 + 10 = 28
Day 4 --> 28 + 10 - 3 = 35
35 - 8 = 27
180 - 8 = 172
172/27 = 6 r 10
6 x 3 = 18
1 + 18 + 1 = 20th day
It was the 20th day.
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