Homework Help: math

Posted by Anonymous on Saturday, March 29, 2008 at 12:30pm.

This is an SAT question of the day that I can't understand.
The sum of the digits of a three-digit number is 12. If the hundreds digit is 3 times the tens digit and the tens digit is 1 over 2 the units digit, what is the tens digit of the number?
Answer choices:
2
3
4
6
9

math - bobpursley, Saturday, March 29, 2008 at 12:52pm
I dont know what 1 over 2 the units digit means.
math - Anonymous, Saturday, March 29, 2008 at 12:55pm
I don't know either. Could it just mean 1/2 more than the tens digit?
math - drwls, Saturday, March 29, 2008 at 1:25pm
Let the digits be H, T and U
H + T + U = 12
H = 3T
T = (1/2) U
4T + 2T = 12
T = 2
T is the tens digit

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