Question

Approximately how many times greater is 1.2 x 10^3 than 4 x 10^-1?

A. 3
B. 30
C. 300
D. 3000

Answer 1

1.2 x 10^3 = 1200

4 x 10^-1 = 2/5 or 0.4

thus we take 1200/0.4 = 3000

So, D: is the correct answer.

Answer 2

the answer is c. 300