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#1 2015-04-20 07:47:34

hasnain
Administrator
From: Chichawatni
Registered: 2014-10-13
Posts: 8,355
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Integer Values:

Question:
For how many integer values of n will the value of the expression 4n + 7 be an integer greater than 1 and less than 200?

Option A):
51
Option B):
49
Option C):
48
Option D):
50

Correct Answer is Option D):
50

Explanation:
1 < 4n + 7 < 200
n can be 0, or -1
n cannot be -2 or any other negative integer or the expression 4n + 7 will be less than1.
The largest value for n will be an integer < (200 - 7) /4
193/4 = 48.25, hence 48
The number of integers between -1 and 48 inclusive is 50


Failure is the first step towards seccess.

2015-04-20 07:47:34

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Re: Integer Values:



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