|
Question 762820: the product of two, 2-digits numbers is 1386. if the product of their unit's digits is 6 and that of ten's digit is 12. find the number?
Answer by nerdybill(7384)   (Show Source):
You can put this solution on YOUR website! the product of two, 2-digits numbers is 1386. if the product of their unit's digits is 6 and that of ten's digit is 12. find the number?
.
Because the factor of 6 is
1,6
2,3
the above must be the possible values of the unit's digit
.
Because the factors of 12 is
2,6
3,4
the above must be the possible values of the ten's digit
.
We KNOW that multiplying the units digit result in a 6, so the only combination is
2,3
or
1,6
.
Trying combinations of the above with possible values of the tens digit results in:
22,63 (answer)
|
|
|
| |
