Question

Mary baked a batch of cookies. The cookies needed 2 1/4 pounds of flour. Jack made 3 1/2 times the amount of cookies that Mary made. How many pounds of flour did Jack need?

a) 63 pounds
b) 8 pounds
c) 8 1/2 pounds
d) 7 7/8 pounds

Answer 1

d) 7 7/8 pounds

Explanation:

`2 (1)/(4) * 3 (1)/(2) = (9)/(4) * (7)/(2) = (63)/(8) = 7 (7)/(8)`