Question

On Monday Mrs. Wise bought 3 lbs of apples at $4 per lb. On Tuesday, apples were on sale for 20% off so she bought another 5 lbs. What was the price of apples on Tuesday?

Answer 1

OK we have to know how much it costs for 5lbs but if it is still $4 then the answer is $2 on Tuesday!

Answer 2

Monday, apples were 4 per lb.......so if the apples were on sale for 20% off, then she paid 80%.....so the apples on Tuesday cost : 0.80(4) = 3.20 per lb.

and she bought 5 lbs.....so the total she paid Tuesday was :
3.20 * 5 = $ 16