An online candle business open five days a week (Monday through Friday) sells fifteen candles a day its first week. If each week, it sells three more candles a day, how many candles IN TOTAL does that business sell in Week 5?

A) 24 candles
B) 27 candles
C) 120 candles
D) 135 candles

You’d be forgiven (by me, anyway) for missing the fact that this online business is only open 5 days a week. It’s an important fact, though.

If they sold 15 candles per day in Week 1, then they’ll sell 18 candles per day in Week 2, 21 candles per day in Week 3, 24 candles per day in Week 4, and 27 candles per day in Week 5.

27 candles per day times 5 days in the work week equals 135 candles.

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