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15 Apr 2016, 01:28
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Difficulty:
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76% (01:24) correct
24%
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If p=125×243×16/405, how many digits are in p?
A. 1
B. 2
C. 3
D. 4
E. 5
A. 1
B. 2
C. 3
D. 4
E. 5
Balajikarthick1990
15 Apr 2016, 03:46
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Bunuel
If p=125×243×16/405, how many digits are in p?
A. 1
B. 2
C. 3
D. 4
E. 5
A. 1
B. 2
C. 3
D. 4
E. 5
Its D...4 digits. Value will be in 1xxx.
15 Apr 2016, 11:59
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Bookmarks
Bunuel
If p=125×243×16/405, how many digits are in p?
A. 1
B. 2
C. 3
D. 4
E. 5
A. 1
B. 2
C. 3
D. 4
E. 5
\(p\) = \(125×243×\frac{16}{405}\)
\(p\) = \(25×243×\frac{16}{81}\)
\(p\) = \(25×3×16\)
\(p\) = \(25×48\)
\(p\) = \(1200\) { Shortcut calculation is 4800/4 , since 25 = 100/4; add 2 zeroes to 48 then divide by 4}
Thus answer must be D. 4
