# Some integers are marked on a board. What is the range of these integers?

(a) 31

(b) 37

(c) 20

(d) 3

**Solution:**

Given, the data marked on a board is 0, 15, -11, -17, 6, 20, -4

We have to determine the __range__ of these integers.

We know that the difference between the highest and lowest observations in a given data is called its Range.

Arranging the __data__ in __ascending order__, we get

-17, -11, -4, 0, 6, 15, 20

The highest observation is 20

The lowest observation is -17

Range = highest observation - lowest observation

= 20 - (-17)

= 20 + 17

= 37

Therefore, the range is 37.

**✦ Try This: **Find the range of the data 22, 5, 17, 13, 5, 9

**☛ Also Check: **NCERT Solutions for Class 7 Maths Chapter 3

**NCERT Exemplar Class 7 Maths Chapter 3 Problem 11**

## Some integers are marked on a board. What is the range of these integers (a) 31 (b) 37 (c) 20 (d) 3

**Summary:**

Some integers are marked on a board. The range of these integers is 37

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