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Question

The mean of fifteen different natural numbers is 13. The maximum value for the second largest of these numbers is

A
46
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B
51
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C
52
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D
53
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Solution

The correct option is B 51
Let the 15 different natural numbers for maximum value for second largest of number be 1,2,3,4,5,6,7,8,9,10,11,12,13,x and y
1+2+3+4+5+6+7+8+9+10+11+12+13+x+y15=13
91+x+y=195
x+y=104
The second maximum will be 51. It can't be 52, because every number is different.
Hence, maximum value for the second largest number is 51.

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