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gamjatang
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What is nearest to (9*10^7)(9*10^8) ? 1) 10^16 2) 17 Nov 2005, 19:43
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

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What is nearest to (9*10^7)(9*10^8) ?

1) 10^16
2) 10^17
3) 10^18
4) 10^32
5) 10^603



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ywilfred
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What is nearest to (9*10^7)(9*10^8) ? 1) 10^16 2) 17 Nov 2005, 19:45
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Take out common factors, we have 9(10^7 * 10^8) = 9 ( 10^15). This should be close to 10^16.

A is the answer.
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laxieqv
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What is nearest to (9*10^7)(9*10^8) ? 1) 10^16 2) 17 Nov 2005, 20:55
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gamjatang
What is nearest to P= (9*10^7)(9*10^8) ?

1) 10^16
2) 10^17
3) 10^18
4) 10^32
5) 10^603
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P= 81* 10^15 , 81 is close to 100 or 10^2, thus 10^17 is the nearest to P.
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FN
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What is nearest to (9*10^7)(9*10^8) ? 1) 10^16 2) 17 Nov 2005, 21:03
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I get 10^17 ...

this is 100*10^7 * 100*10^8=100*10^15=10^17...
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cool_jonny009
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What is nearest to (9*10^7)(9*10^8) ? 1) 10^16 2) 17 Nov 2005, 21:04
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B

its

(9*10^7)(9*10^8)=9*9*10^15=81*10^15=.8*10^17
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gamjatang
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What is nearest to (9*10^7)(9*10^8) ? 1) 10^16 2) 17 Nov 2005, 22:50
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laxieqv
gamjatang
What is nearest to P= (9*10^7)(9*10^8) ?

1) 10^16
2) 10^17
3) 10^18
4) 10^32
5) 10^603

P= 81* 10^15 , 81 is close to 100 or 10^2, thus 10^17 is the nearest to P.
Show more


Perfect.

I've posted this question, but do I really have to post the OA, too?
Laxie is always correct - she's the OA herself! :-D

The OA is 10^17.
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Bhai
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What is nearest to (9*10^7)(9*10^8) ? 1) 10^16 2) 18 Nov 2005, 20:02
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10^15 * 10 * 8.1

10^17

ywilfred,

this is multiplication



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Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
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Thank you for understanding, and happy exploring!
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