Question

How many 2 digit numbers are divisible by 4
use AP​

Answer 1

12,16,20,24.................96

a=12 d=16-12=4

an = a +(n-1)d

96=12+( n-1)4

(n-1)4=96-12

(n-1)4= 84

n-1=84/4

n-1= 21

n= 21+1

n= 22

And hence 22 two digit numbers are divisible by 4

Answer 2

Answer:

Step-by-step explanation: