Data Interpretation MCQ Questions and Answers - Bar Chart

1

The ratio of the total number of boys passed to the total number of girls passed in the three classes VII, VIII and IX is:

A) 19 : 25 B) 21 : 26 C) 20 : 23 D) 18 : 21

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Answer & Solution

$$\eqalign{ & \text{Required ratio} \cr & = \frac{40 + 90 + 70}{100 + 50 + 80} \cr & = \frac{200}{230} \cr & = \frac{20}{23} \cr & = 20 : 23 \cr} $$

2

The average number of boys passed per class per class is:

A) 78 B) 72 C) 75 D) 70

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Answer & Solution

Total numbers of boys
= 80 + 40 + 90 + 70 + 70
= 350
∴ Average = $$\frac{350}{5}$$ = 70

3

The class in which the number of boys passed is nearest to the average number of girls passed per class, is-

A) VIII B) IX C) X D) VI

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Answer & Solution

$$\eqalign{ & \text{Average no. of girls} \cr & = \frac{70 + 100 + 50 + 80 + 90}{5} \cr & = \frac{390}{5} \cr & = 78 \cr} $$
Class VI boys is nearest to the average no. of girls passed per class.

4

The class having the highest number of passed students, is:

A) VII B) IX C) VIII D) X

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Answer & Solution

Class VI = 80 + 70 = 150
Class VII = 100 + 40 = 140
Class VIII = 90 + 50 = 140
Class IX = 80 + 70 = 150
Class X = 90 + 70 = 160 (highest)
Class X is highest number of students passed.