Question

What are the number of whole numbers lying between 42 and 65?

Answer 1

Whole numbers lies between 42 and 65 are-
43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64.
They all are whole nos. and lies between 42 and 65.They are total22

Answer 2

Given:

Whole numbers between 42 and 65

To find:

The number of whole numbers

Solution:

The required number is 22.

We can form an A.P. and then obtain the required number of terms.

The given terms lie between 42 and 65.

So, the A.P. becomes 42, 43, 44, 45, and so on till 65.

The common difference, d, is 1.

The first term, a=42

The last term, l=65

Let the number of given terms be n.

We know that the An term=a+(n-1)d.

Using the values,

l=a+(n-1)d

65=42+(n-1)×1

65-42=n-1

65-43=n

22=n

So, there are 22 whole numbers.

Therefore, the required number is 22.