"Life is like riding a bicycle. To keep your balance you must keep moving."
- Albert Einstein
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Aptitude - Surds and Indices - Discussion
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| 4. |
If 5a = 3125, then the value of 5(a - 3) is:
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| [A]. |
| 25 |
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| [B]. |
125 | | [C]. |
625 | [D]. |
1625 |
Answer: Option A
Explanation:
5a = 3125 5a = 55
a = 5.
5(a - 3) = 5(5 - 3) = 52 = 25.
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