Question

Ane had 27 stickers two weeks ago. She was buying stickers each day for those two weeks. She bought 3 stickers two weeks ago, and on each day she bought two more stickers than she bought on the previous day. How many stickers does she have now?

Answer 1

Answer: 251 stickers

Explanation:

She had 27 stickers before she started her sticker buying spree 14 days ago (2 weeks)

She bought 3 stickers on the 1st day of those 14

Then she started increasing in by 2 each day

Total for those 14 days = 3+5+7+9+11+13+15+17+19+21+23+25+27+29

Adding the 27 she already had

3+5+7+9+11+13+15+17+19+21+23+25+27+29+27 = 251 stickers