Question

What percent of number from 1 to 20 are disabled by 4

Answer 1

Numbers divisible by 4 are 4,8,12,16,20
ie,5 numbers
percentage =5/20×100
5×5
25%

Answer 2

Heya !!

So, let's check the divisibility of each number from 1 to 20 by 4 separately.

1 is not divisible by 4.

2 is not divisible by 4.

3 is not divisible by 4.

4 is divisible by 4. (4/4 = 1)

5 is not divisible by 4.

6 is not divisible by 4.

7 is not divisible by 4.

8 is divisible by 4. (8/4 = 2)

9 is not divisible by 4.

10 is not divisible by 4.

11 is not divisible by 4.

12 is divisible by 4. (12/4 = 3)

13 is not divisible by 4.

14 is not divisible by 4.

15 is not divisible by 4.

16 is divisible by 4. (16/4 = 4)

17 is not divisible by 4.

18 is not divisible by 4.

19 is not divisible by 4.

20 is divisible by 4. (20/4 = 5)

Here, we see that only 5 numbers out of 20 are divisible by 4.

So,

$\text{Number of numbers divisible by 4 = \dfrac{5}{20} }\\\\\\\text{\% of numbers divisible by 4 = \dfrac{5}{20} \times 100 = 5 \times 5 = \large \underline{\boxed{25 \%}} }$

Therefore, 25% numbers from 1 to 20 are divisible by 4.

Hope it helps !!