Question

how many number from 200 to 400 are not divisible by 6

Answer 1

To divisible by 6 they have to be divisible by 2 and 3.from 200 to 400 divisible by 3 are 66 numbers. in them divisible by 2 are 66÷2 =33 -1 =32.

Answer 2

Answer:

33

Step-by-step explanation:

the first no. divisible after 200 is = 204

the last no. divisible before 400 is = 396

lets take

a = 204

d = 6

an = 396

n = ?

an = a + (n-1)d

396 = 204+(n-1)6

396 - 204 = (n-1)6

192 = (n-1)6

192/6 = n-1

32 = n - 1

n=33  

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