Sheet # 9/Critical Thinking/Lights
Name: _____________________ Date_____________
Use drawings, words, or numbers to explain how you got your answer.
Tom's brother, Harry, claims that he has put over 2,300 lights on the Christmas tree and that he spent less than $70.00 on lights. Tom, however, thinks that Harry has fewer lights than that and spent more money than what he is claiming. The following is the sales receipt for the lights Harry purchased from a store.
100-light set
10 sets @ $3.95/set
200-light set
5 sets @ $6.95/set
Who is correct?
Answer for sheet # 9
Harry spent
10 sets x $3.95/set = $39.50
5 sets x $6.95/set = $34.75
Total cost = $74.25
Total of lights
10 sets x 100 light/set = 1000 lights
5 sets x 200 lights/set = 1000 lights
Total lights = 2000
Tom is correct.