The number of students in five different classes are tabulated here. Represent the data on a bar graph and answer the following questions.

Class

Fifth

Sixth

Seventh

Eighth

Ninth

Number of children

30

50

65

45

60

(i) Find the ratio of students of class sixth to the students of class ninth.
(ii) What is the difference in the number of students of class fifth and class eighth?

[5 marks]

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Solution

Class

Fifth

Sixth

Seventh

Eighth

Ninth

Number of children

30

50

65

45

60

[3 marks]

(i) Ratio of students of class 6th to the students of class 9th = 50 : 60 = 5 : 6
[1 mark]

(ii) Difference in number of students of class 5th and class 8th = 45 – 30 = 15
[1 mark]

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Similar questions

Number of children in six different classes are given below. Represent the data on a bar graph.

Class	Fifth	Sixth	Seventh	Eighth	Ninth	Tenth
Number of children	135	120	95	100	90	80

(a) How would you choose a scale?

(b) Answer the following questions:

(i) Which class has the maximum number of children? And the

minimum?

(ii) Find the ratio of students of class sixth to the students of class

eight.

Class	Fifth	Sixth	Seventh	Eighth	Ninth
Number of children	30	50	65	45	60

(ii) What is the difference in the number of students of class fifth and class eighth?

[5 marks]

\begin{matrix} C l a s s & F i f t h & S i x t h & S e v e n t h & E i g h t h & N i n t h & T e n t h N o . o f c h i l d r e n & 135 & 120 & 95 & 100 & 90 & 80 \end{matrix}

Class	Fifth	Sixth	Seventh	Eighth	Ninth
Number of children	30	50	65	45	60

(ii) What is the difference in the number of students of class fifth and class eighth?

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