Answers

2015-09-11T21:07:55+08:00

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Since the number is between 300 and 400 this would mean that the hundreds digit is 3. We let the two other digits be b and c.

3 + b + c = 5(3)
b + c = 12

Since c is odd and b and c range from 0 to 9 the only ordered pairs for (b,c) are:
(9,3), (7,5), (5,7), (3,9)

Since we can't repeat digits the remaining pairs would be:
(7,5), (5,7)

The only numbers possible would be 375 and 357.
1 1 1