Question

How will you lead your student to do the 2015 :- 15 division sum?

Answer 1

Consider now a problem given in a pre-algebra course that involves percentages: “A coat has been reduced by 20 percent to sell for $160. What was the original price of the coat?”

A student may show the solution as follows:

x = original cost of coat in dollars
100% – 20% = 80%
0.8x = $160
x = $200