PS--Number Operations : PS Archive
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# PS--Number Operations

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05 Oct 2004, 07:30
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Here's an easy one, but i would like to know how do you guys approach it.

Q- For which of the following expressions would the value be greater if 160 were replaced by 120?

1. 1,000 -160. 2. 160/1+160 3. 1/ 1- 1/160

Choices:
a) None
b) 1 only
c) 3 only
d) 1 and 2
e) 1 and 3

P.S: Also " IF A NUMBER EVENLY DIVIDES INTO ANOTHER NUMBER", does it mean that the remainder is 0 or it means that the quotient is always an even number?
And what do we mean by EVENLY SPACED NUMBERS?

Please guys , i need clarification for these.

Thanks.
Joined: 31 Dec 1969
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05 Oct 2004, 07:44
1. 3 only will increase. 1 and 2 will decrease. 1 is simple and 2 is little tricky but the numbers are getting smaller though. 3 has the typical negative impact.

2. Evenly divided means - ramainder is '0'
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05 Oct 2004, 07:58
1) 1000-160 = 840 and 1000-120=880, 860<880

so the answer should be E (1 and 3). Am I missing anything?

-Irene
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05 Oct 2004, 13:56
Quote:
And what do we mean by EVENLY SPACED NUMBERS?

Evenly spaced numbers means they are the same distance apart. For example, {1,3,5,7,9} are evenly spaced as are {-5,0,5,10,15}
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05 Oct 2004, 14:58
Answer is B, III is decreasing when 160 is replaced by 120
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05 Oct 2004, 16:53
05 Oct 2004, 16:53
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