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keshav soni

· started a discussion

· 1 Months ago

keshav (Question: 98790.0 )

33.25 kese aaya

Question:
The average of 26, 29, n, 35 and 43 lies between 25 and 35. If n is always an integer and greater than the average of the given integers then the value of n is:
Options:
A) 33 < n < 47
B) 34 < n < 43
C) 33 < n < 42
D) 35 < n < 44
E) none of these
Solution:
Ans: (c) Average of 26, 29, n,35 and 43 is 33.25. Also the average of 26, 29,35 and 43 lies between 25 and 35. i.e,

\(25 <\cfrac{26+ 29+ n+ 35+43}{5}< 35\)

⇒ 125 < 26 + 29 + n + 35 + 43 < 175

⇒ 125 < 133 + n <175 

⇒ n < 42

Since the value of n is an integer and greater than 33.25 then 33< n<42 for every integer n.

Girish Kumar

· commented

· 1 Months ago

Yet to be approved!
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