Question

How many two-digit numbers are divisible by5?

Answer 1

ANSWER:

• Number of two digit number Divisible by 5 is 18

GIVEN:

• Two digit number Divisible by 5.

TO FIND:

• Number of two digit number divisible by 5.

SOLUTION:

First two digit number Divisible by 5 is 10

Second two digit number Divisible by 5 is 20 .

Last two digit number Divisible by 5 is 95.

Required A.P :

10 ,15, 20 ........95

Here:

First term (a) = 10

Common difference (d) = 5

Last term (nth term) = 95

Formula:

=> nth term = a+(n-1)d

Putting the values we get;

=> 95 = 10+(n-1)5

=> 95-10 = (n-1)5

=> 85 = 5(n-1)

=> 85/5 = n-1

=> 17 = n-1

=> n = 17+1

=> n = 18

Number of two digit number Divisible by 5 is 18