Question

Victoria has a 2 pound package of flour. She uses 2/5 of the flour to make pizza. She then uses 3/10 of the remaining flour to make bread. Find the weight of the package of flour that she has left. Express your answer as a decimal.

Answer 1

One pound= 16 ounces 

2 x 16 = 32 ounces = 2 pounds

2/5 can also be expressed in decimal form as .4

so 32 x .4 = 12.8

and then 3/10 also is .3 

so 32 x .3 = 9.6 

add the two 12.8 + 9.6 = 22.4