Question

if the volume of a pizza dough is doubled every two hours, in how many hours is the volume of the pizza dough eight times larger than the initital volume of the pizza dough?
A. 6
B. 7
C.8
D.9
E.10

Answer 1

In the first two hours, the dough would have doubled in size.

in the next two hours, the dough would have become 4 times its normal size(2*2=4).

in the next two hours, the dough would have become 8 times its size(4*2=8).

therefore, it takes 6 hours for the dough to become eight times its size.

Answer: A)6

Answer 2

(a) 6
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