Question

how many number are divisible by 4 between 20 to 100?
20
21
19
18​

Answer 1

Step-by-step explanation:

The numbers divisible by four between 1 to 100 are:4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96, 100. This we can get by adding 4 from 1 up to the last 100. So 25 numbers are divisible by 4 between 1 to 100.

Answer 2

Answer:

100 = 20 + (n-1) d

or, n-1 = 80/4

or, n= 20 +1 =21

but since we have to find numbers between 4 to 100, we won't count 4 and 100 in this list.

then, number of numbers between 4 to 100 divisible by 4 = 21 - 2 = 19

19 would be the answer