Question

the number of natural numbers from 'a' to 'b', where is (a) b-a-1 (b) b-a+1 (c) a + b-1 (d) none​

Answer 1

$The \:number\: of\: natural\: numbers\: from$

$'a' \:to \:'b', \: where \: a \lt b \: is$

$\underline{\pink{ b - a + 1 }}$

Therefore.,

$Option \: \green { ( b ) } \: is \: correct.$

Example:

The number of natural numbers from '20' to '145', is = 145 - 20 + 1

145 - 20 + 1 = 125 + 1

145 - 20 + 1 = 125 + 1 = 126

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Answer 2

The number of natural numbers from 'a' to 'b' where is...

a) b-a-1

b) b-a+1 ✔️✔️✔️

c) a+b-1

d) none