If the units digit of the threedigit positive integer k is nonzero, what is the tens digit of k?
(1) The tens digit of k + 9 is 3.
(2) The tens digit of k + 4 is 2.
Unit digit
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IMO A
since they are nonzero digits, if we add 9 to 1 or another number, we will have 10,11,12 and so on... thus the tens digit in this case is 2.
stmt 2 doesn't really help, cuz it could be 39+2=41 or 41+2=43.. insuff
since they are nonzero digits, if we add 9 to 1 or another number, we will have 10,11,12 and so on... thus the tens digit in this case is 2.
stmt 2 doesn't really help, cuz it could be 39+2=41 or 41+2=43.. insuff
 cubicle_bound_misfit
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No stmt 2 is not
let the number be
XYZ where Z !=0
for Z+4 if Z<=5 Y remains as it is i.e Y could be 2 as given
+
if Z>5 tens digit Y becomes Y+1 i.e Y could be 1.
Hence Insufficient.
HTH
let the number be
XYZ where Z !=0
for Z+4 if Z<=5 Y remains as it is i.e Y could be 2 as given
+
if Z>5 tens digit Y becomes Y+1 i.e Y could be 1.
Hence Insufficient.
HTH
Cubicle Bound Misfit