Question

How many no. b/w 100 to 2000 which are not divisible by 4 ?

Answer 1

Answer:

Euler of 2*3*5

= (1- 1/2)(1 - 1/3)(1 - 1/5)

= (1/2)(2/3)(4/5)

= 4/15

Number not divisible :-

Between 1-100

100 (4/15)

= 26

Between 1-195

= 195 (4/15)

= 52

So from 1-195

52-26 = 26

Between 196-200 only 2 number is not divisible I.e 197 & 199

Total number

= 26+2

= 28 <--- answer

Answer 2

Step-by-step explanation:

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