Practice Histogram

1 / 4

Directions : Look at the histogram and answer the questions.

The histogram shows the marks obtained by 45 students of a class.

Question

How many students have obtained marks 50 and above ?

Required number of students

= 4 + 7 + 5

= 16

2 / 4

Directions : Look at the histogram and answer the questions.

The histogram shows the marks obtained by 45 students of a class.

Question

If the pass mark be 30, what is the number of failures?

Number of failures

= 2 + 6 + 10

= 18

3 / 4

Directions : Look at the histogram and answer the questions.

The histogram shows the marks obtained by 45 students of a class.

Question

How many students have obtained marks less than 10 ?

It is obvious from the histogram.

4 / 4

Directions : Look at the histogram and answer the questions.

The histogram shows the marks obtained by 45 students of a class.

Question

If the pass mark be 30, what is the percentage of successful students?

20%

40%

60%

80%

Number of successful students

= 45 – 18 = 27

\[\therefore \text{Required percentage}\]

\[= \frac{27}{45} \times 100\]

= 60%