human
Sasha notices that prices for lumber have gone up 50% in the last few months after she bought some lumber. Since she has leftovers, she decides to sell them. She has leftover ten 2 x 4 x 10 boards that cost her $10 each. She also has five 4 x 4 x 10 boards she bought for $16 each. If she sells them all, how much profit does she make?
assistant
How much did the 2 x 4s cost? ** She bought the 2 x 4s for $100 because 10 x 10 = 100
How much did the 4 x 4s cost? ** She bought the 4 x 4s for 80 because 5 x 16 = 80
How much did the lumber cost? ** She paid $180 for the lumber because 100 + 80 = <<100+80=180>>180
How much does the same number now sell for? ** The same number now sells for $270 because 180 x 1.5 = <<180*1.5=270>>270
How much did she make in profit? ** She made $90 in profit because 270 - 180 = <<270-180=90>>90
#### 90