Question 127
The difference between the 38% of a number and 22% of that number is 3200. What is the $$15\frac{1}{2}\%$$ of that number?
Solution
Let the number be 100%.
The difference between the 38% of a number and 22% of that number = 3200
38% - 22% = 3200
16% = 3200
100% = 20000
Number = 20000
$$15\frac{1}{2}\% of the number = 20000 \times \frac{31}{2 \times 100}$$ = 3100
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