rashedBhai wrote:
What is the tens digit of the three-digit positive integer n?
(1) The tens digit of (n+5) is 5.
(2) The tens digit of n is less than the tens digit of 10n
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from the given info
we know n= 100a+10b+c
3 digit no
#1
tens digit n+5 is 5
so n can be 145,146,147,148,149 ; addition of 5 would given tens digit as 5
also when 150,151,152,153,154 ; addition of 5 would given tens digit as 5
in sufficient
#2
tens digit of n < 10n , tens digit
not sufficient
from 1& 2
we can say that value of n would be from 145-149 and tens digit would be 4 ...
IMO C sufficient
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