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18 Jun 2018, 21:39
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
75% (01:01) correct
25%
(01:08)
wrong
based on 132
sessions
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Time
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Not Attempted Yet
Which of the following is equal to 25,000,000?
A. \(25 * 10^7\)
B. \(2.5 * 10^{-7}\)
C. \((2 * 10^6) + (5 * 10^5)\)
D. \((20 * 10^{-7}) + (5 * 10^{-6})\)
E. \((2 * 10^7) + (5 * 10^6)\)
A. \(25 * 10^7\)
B. \(2.5 * 10^{-7}\)
C. \((2 * 10^6) + (5 * 10^5)\)
D. \((20 * 10^{-7}) + (5 * 10^{-6})\)
E. \((2 * 10^7) + (5 * 10^6)\)
18 Jun 2018, 21:55
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Solution
To find:
- • Which of the following is equal to 25,000,000
Approach and Working:
We can rewrite the 25,000,000 in the following manner:
- • 25,000,000 = \(20,000,000 + 5,000,000 = 2 * 10^7 + 5 * 10^6\)
Hence, the correct answer is option E.
Answer: E
18 Jun 2018, 23:44
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Bunuel
This question is designed to assess your knowledge in scientific notation.
Given,
25000000
= 20000000 + 5000000
= 2X\(10^7\) + 5X\(10^6\)
First of all here the power of 10 will be positive. considering this ground B and D. 25000000 is a number with 6 zeros. we also got 2 and 5. Therefore we need to break down the number.
The best option is E.
