Question

Which among the following is not divisible by 3?
(a)30163
(b)30153
(c)39150​

Answer 1

Answer:

We know that divisibility rule of 3 is the sum of all digits is divisible by 3.

Step-by-step explanation:

Hence,b) 30163 = 3+0+1+6+3= 13 and 13 is not divisible by 3. Hence , a) 30163 is not divisible by 3.

Answer 2

SOLUTION:—

TO CHECK WHETHER THE GIVE NUMBER IS DIVISIBLE BY 3 OR NOT WE WILL APPLY DIVISIBILITY RULE OF 3

♤ SUM OF ALL DIGIT OF GIVEN NUMBER IS DIVISIBLE BY 3 IF YES NUMBER IS ALSO DIVISIBLE BY 3.

a) 3+0+1+6+3 = 13 & 13 is not DIVISIBLE by 3

=》 30163 is not DIVISIBLE by 3 .

b) 3+0+1+5+3 = 12 & 12 is DIVISIBLE by 3

=》 30153 is DIVISIBLE by 3.

c) 3+9+1+5+0 = 18 & 18 is DIVISIBLE by 3

= 》 39150 is DIVISIBLE by 3.

ANSWER :–

OPTION ( A ) 30163 IS NOT DIVISIBLE BY 3.