Quantcast
Channel: GMAT Club Forum - Forums > Reading Comprehension (RC)
Viewing all articles
Browse latest Browse all 291973

GMAT Problem Solving (PS) | Re: How many digits are there in the integer 8^7 × 25^12?

$
0
0
Bunuel wrote:

How many digits are there in the integer 8^7 × 25^12?

A. 27
B. 24
C. 21
D. 19
E. 15


\(8^7*25^{12}\)

\((2^3)^7*(5^2)^{12}\)

\(2^{21}*5^{24}\)

\((2*5)^{21}*5*5*5\)

\(125*10^{21}\)

That's 3+21=24 digits.

B.

Viewing all articles
Browse latest Browse all 291973

Latest Images

Trending Articles



Latest Images

<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>