SOLUTION: 2/3 the sum of two numbers is 12. One of the numbers is 10, what is the other number?

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Question 1179146: 2/3 the sum of two numbers is 12. One of the numbers is 10, what is the other number?
Found 3 solutions by ikleyn, ewatrrr, josgarithmetic:
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.

2/3 the sum is 12.


Hence,  1/3  of the sum is 6.


It means that the sum is 3*6 = 18.


One of the two numbers is 10.


It leaves 8 for the other number.    ANSWER

Solved.

Easy mental exercise.


///////////


@ewatrrr misread the problem, so her solution and her answer BOTH are incorrect.



Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!

Hi
Let n be th e'other number'
10 + n = 12  |Simplify
     n = 2
Wish You the Best in your Studies.


Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!

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