Question 236

The sum of 15% of a positive number and 20% of the same number is 126. What is the one-third of that number?

Solution

Let the given number be x

Sum of 15% of x and 20% of x =$$\frac{15x}{100}+\frac{20x}{100}$$ = $$\frac{35x}{100}$$

$$\frac{35x}{100}$$ = 126

x = 100*126/35 = 360

1/3 rd of a number = 360/3 = 120

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