When 16 is added to the 1/3 of a number, the result is 2 1/3 of the original number. The original number is?
- 10
- 9
- 8
- None of these
Explanation
Let's say the original number is x.
Given:
1/3 of x + 16 = 2 1/3 of x
1/3x + 16 = 7/3x
Multiply both sides by 3:
x + 48 = 7x
48 = 6x
x = 48/6
x = 8
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