Page 88 - Mathematics Class - IX

MCQs

1. The class mark of 25 – 30 is:
a) 27 b) 27.5 c) 26 d) 28

2. The range of the data 16, 44, 32, 21, 19, 14, 20, 41, 29 is:
a) 32 b) 30 c) 28 d) 27
3. The median of the data 32, 35, 39, 31, 35, 36, 33 is:

a) 35 b) 33 c) 36 d) 39
4. The mean of first 6 composite numbers is:

a) 8.17 b) 6.5 c) 9 d) 8.5
5. If the mode of 9, 3, 9, 6, 4.3, x – 3, is 9 then x is:
a) 12 b) 3 c) 9 d) 6

Answers: 1. b) 27.5 2. b) 30 3. a) 35 4. a) 8.17 5. a) 12

Case-Study Based Questions
Case-Study Based Questions

Read the histogram which shows the number of books sold by a book store during five consecutive years.

Answer the following questions on the basis of the
above data.
1. How many books were sold in 2011–2012? 700
(i) 500 (ii) 250
(iii) 550 (iv) 600 500

2. In which year were about 200 books sold? Books 400

(i) 2008–2009 (ii) 2009–2010
250
(iii) 2010–2011 (iv) 2012–2013 200
3. In which year were maximum books sold? 100

(i) 2009–2010 (ii) 2008–2009 0 2008 2009 2010 2011 2012 2013

(iii) 2012–2013 (iv) 2010–2011 Years

4. Estimate the number of books sold in 2007–2008.
(i) 100 (ii) 600 (iii) 150 (iv) 0

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