Aptitude - Surds and Indices - Discussion
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Read more:"Life is like riding a bicycle. To keep your balance you must keep moving."
- Albert Einstein
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| 3. |
Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to:
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1.45 | [B]. |
1.88 | | [C]. |
2.9 | [D]. |
3.7 |
Answer: Option C
Explanation:
xz = y2  10(0.48z) = 10(2 x 0.70) = 101.40
 0.48z = 1.40
| z = |
140 |
= |
35 |
= 2.9 (approx.) |
| 48 |
12 |
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Fazila said:
(Wed, Nov 10, 2010 07:20:04 AM)
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| i think its something different method |
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Vignesh said:
(Mon, Sep 26, 2011 05:09:42 PM)
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| This not the different one, as like a to the power m whole to the power of n=a to the power of m*n. |
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Rajesh said:
(Fri, Jan 20, 2012 10:55:27 PM)
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| Its very Simple. If Base Values are equal of both side than power's are equal. |
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