What is the maximum number of 2 ½ foot pieces of wire that can be cut from a wire that is 48 feet long?
A)11
B)18
C)19
D)20

Question

Quizplus · Accepted Answer

48 divided by 2 ½ = 48 divided by 5/2 = 48÷5/2 = 48 x 2/5 = 19.2
19 pieces of 2 ½ foot each. The 20th piece will be of smaller size.
Key takeaway: Division by 10 is easy. So if you have to divide by 2 ½, first divide the number by 10 and then multiply by 4

What Is the Maximum Number of 2 ½ Foot Pieces