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(0.5 × 10^p) / (25 × 10^q) = 0.2 × 10^13?

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(0.5 × 10^p) / (25 × 10^q) = 0.2 × 10^13?

by sanju09 » Wed Feb 29, 2012 12:15 am
What is the value of p − q, given that (0.5 × 10^p) / (25 × 10^q) = 0.2 × 10^13?
A. 10
B. 12
C. 13
D. 14
E. 15
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by Anurag@Gurome » Wed Feb 29, 2012 12:25 am
sanju09 wrote:What is the value of p − q, given that (0.5 × 10^p) / (25 × 10^q) = 0.2 × 10^13?
A. 10
B. 12
C. 13
D. 14
E. 15
(0.5 × 10^p) / (25 × 10^q) = 0.2 × 10^13
0.02 × 10^(p - q) = 0.02 × 10^14
So, p - q = 14

The correct answer is D.
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