Mark and Kathy sold 160 houses in a year but Kathy sold 4 times more houses than Mark. How many more houses did Kathy sell than Mark?

Answer 1

Kathy sold 128, Mark sold 32, so your answer is: 96. Here's how we find the number of houses Mark sold: X + 4X = 160 5x = 160 x = 160/5 x = 32 Gripe: I hate it when people say, "Kathy sold four times more than Mark" when they mean four time as many as Mark. To me, "four times more" indicates five times as many.

x + 5x = 160

6x = 160

x = 160/x Mark sold 26 2/3 and Kathy sold 133 1/3