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The bar graph representing the number of persons in various age groups in a town is shown in the figure below.

What is the percentage of the youngest age-group persons over those in the oldest age group?

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46.6667%

47.7776%

544.34%

466.6667%

answer is D.

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Detailed Solution

Given, a list of human age data.
Question Image

By, observing the graph,
Youngest age group

= 10 − 15

.
And the number of people belong to

10 − 15

group

= 1400

.
Oldest age group

= 70 − 75

.
And the number of people belong to

70 − 75

group

= 300

.
The proportion of people in the youngest age group

1400

compared to those in the oldest

300

= Y o u n g e r O l d e r × 100 = 1400300 × 100 = 14003 = 466 ⋅ 6667

The percentage of the youngest age-group persons over those in the oldest age group 466.6667%.
Hence, option 4) is correct.

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