To raise money for a class trip, Rana's class sells granola bars. On the first day, 20 bars are sold. On the following days, the number of granola bars sold increases by 5 bars per day. Rana's class wants to raise $650. How many granola bars in total are sold by the end of the 6th day? Each granola bars costs $1. On which day of sales will the students reach their goal?

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9 September, 23:51

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Hanna · Answer 1

20+25+30+35+40+45+50+55+65+70+75+80+85 = 675

therefore, 13 days will be needed to retrieve 650 if each bar has an earn of 1 dollar