Question 73

The given Bar Graph presents the percentages of population in the age groups, X(above 50 years), Y(20 to 50 years), Z(below 20 years)in five different villages, A, B, C, D and E with total population of 5000, 6000, 8000, 4500 and 6000 respectively.

The difference between the number of persons of ages below 20 years in villages D and E, taken together, is what
percentage of the number of persons of the same age group in village D?

Solution

The number of persons of age below 20 years in Village D = $$\frac{20}{100}\times4500=900$$

The number of persons of age below 20 years in Village E = $$\frac{25}{100}\times6000=1500$$

$$\therefore\ $$Required Percentage = $$\frac{1500-900}{900}=\frac{600}{900}\times100=\frac{200}{3}\%$$

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