The following pie charts shows the percentage distribution of total students selected in SSC examination and percentage distribution of total boys selected students from six different zones. Study the following pie chart carefully and answer the given questions.

Find the ratio of average number of boys selected to the average number of girls selected from all the six zones?

The correct option is 7:5.

Given Data:

From the provided pie charts, we have the following visual information:

1. Total number of students selected across all six zones = 12000

2. Total number of boys selected across all six zones = 7000

Step 1: Calculate the total number of girls selected.

The total number of girls selected from all six zones is the difference between the total number of students selected and the total number of boys selected:

$\text{Total Girls}=\text{Total Students}-\text{Total Boys}$

$\text{Total Girls}=12000-7000=5000$

Step 2: Calculate the average number of boys and girls selected.

There are 6 zones in total (Zone A, Zone B, Zone C, Zone D, Zone E, Zone F).

Average number of boys selected from all 6 zones:

$\text{Average Boys}=\frac{7000}{6}$

Average number of girls selected from all 6 zones:

$\text{Average Girls}=\frac{5000}{6}$

Step 3: Find the ratio of average boys to average girls.

$\text{Ratio}=\frac{\text{Average Boys}}{\text{Average Girls}}=\frac{\frac{7000}{6}}{\frac{5000}{6}}=\frac{7000}{5000}=\frac{7}{5}$

Thus, the ratio of the average number of boys selected to the average number of girls selected from all six zones is 7:5.