Question

The volume of a raisin is 4.5 x 10-1 cm³. The volume of a swimming pool is 9 x 108 cm³.
How many raisins would it take to fill the swimming pool?
?
x?
A
10-9
10-7
107
109

Answer 1

Number = (9 × 10^8) ÷ (4.5 × 10^-1) = (9/4.5) × 10^(8 - (−1)) = 2 × 10^9.

So about 2.0 × 10^9 raisins (≈ 2 billion). From the choices given, pick 10^9 (closest).