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In the following distribution:
Monthly income range Rs. Number of families
Income more than 10,000 100
Income more than 13,000 85
Income more than 16,000 69
Income more than 19,000 50
Income more than 22,000 33
Income more than 25,000 13
the number of families having income range (in Rs) 16000 - 19000 is
a. 15
b. 16
c. 17
d. 19
Solution:
Given, monthly income range of the families.
|
Monthly income range in Rs. |
Number of families |
|
Income more than 10,000 |
100 |
|
Income more than 13,000 |
85 |
|
Income more than 16,000 |
69 |
|
Income more than 19,000 |
50 |
|
Income more than 22,000 |
33 |
|
Income more than 25,000 |
15 |
We have to find the number of families having income range between Rs. 16000 and Rs. 19000.
From the table,
Number of families having income above Rs. 16000 = 69
Number of families having income above Rs. 19000 = 50
Number of families having income range 16000 - 19000 = number of families having income above 16000 - number of families having income above 19000
= 69 - 50
= 19
Therefore, the number of families having an income range 16000 - 19000 is 19.
✦ Try This: In the following distribution:
|
Monthly income range in Rs. |
Number of families |
|
Income more than 20,000 |
80 |
|
Income more than 30,000 |
60 |
|
Income more than 40,000 |
50 |
|
Income more than 50,000 |
30 |
|
Income more than 60,000 |
11 |
the number of families having income range (in Rs) 20000 - 30000 is
Given, the table shows the monthly income range and the number of families.
We have to find the number of families having income range (in Rs.) 20,000 - 30,000
Number of families having income above 20000 = 80
Number of families having income above 30000 = 60
Number of families having income range 20000 - 30000 = 80 - 60
= 20
Therefore, the number of families having income range (in Rs.) 20000 - 30000 is 20.
☛ Also Check: NCERT Solutions for Class 10 Maths Chapter 14
NCERT Exemplar Class 10 Maths Exercise 13.1 Sample Problem 2
In the following distribution: Monthly income range Rs. Number of families Income more than 10,000 100 Income more than 13,000 85 Income more than 16,000 69 Income more than 19,000 50 Income more than 22,000 33 Income more than 25,000 13, the number of families having income range (in Rs) 16000 - 19000 is a. 15, b. 16, c. 17, d. 19
Summary:
The number of families having income range (in Rs) 16000 - 19000 is 19
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