Question

8) In the number 57x8 if the
digit in place of x is ....
then the number is divisible
by 3.
options

A. 0 B. 1 C. 2 D. 3​

Answer 1

Answer:

B = 1

Step-by-step explanation:

BECAUSE, WHEN SUM OF DIGITS OF NUMBER IS DIVISIBLE BY THE 3 THEN THE WHOLE NUMBER WILL NE DIVISIBLE BY 3 ALSO

SO , HERE IF WE PUT X = 1

5 + 7 + 1 + 8 = 21

AND HERE 21 IS DIVISIBLE BY 3 HENCE ANSWER IS C

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