Asked by Tristen
I am a number between 400 and 500. My ones digit is 3 more than my tens digit. The sum of my digits is 13. What number am I?
Answers
Answered by
A.P.
436.
The hundreds must be a four, so the sum of the rest is 13-4=9.
Let x be tens. That gives:
x+(3+x) = 9
x=6
Find ones: 9-6=3.
The hundreds must be a four, so the sum of the rest is 13-4=9.
Let x be tens. That gives:
x+(3+x) = 9
x=6
Find ones: 9-6=3.
Answered by
A.P.
Amendment (I seem to be doing that a lot when solving problems in my head)
x is, of course 6/2= 3 and represents the tens.
Ones are 9-3=6.
x is, of course 6/2= 3 and represents the tens.
Ones are 9-3=6.
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Anonymous
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