find M and N so that the following number is divisible by both 3 and 5. a) M56N, b) 45M7N, c) N608M​

1 thought on “find M and N so that the following number is divisible by both 3 and 5. a) M56N, b) 45M7N, c) N608M​”

1. Step-by-step explanation:

   (i) 1332

   The given number = 1332

   For a number to be divisible by 9 sum of digits must be divisible by 9.

   Sum of its digits = 1 + 3 + 3 + 2 = 9

   Since 9 is divisible by 9, therefore 1332 is divisible by 9.

   (ii) 53247

   The given number = 53247

   For a number to be divisible by 9 sum of digits must be divisible by 9.

   Sum of its digits = 5 + 3 + 2 + 4 + 7 = 21

   Since 21 is not divisible by 9, therefore 53247 is not divisible by 9.

   (iii) 4968

   The given number = 4968

   For a number to be divisible by 9 sum of digits must be divisible by 9.

   Sum of digits = 4 + 9 + 6 + 8 = 27

   Since 27 is divisible by 9, therefore 4968 is divisible by 9.

   (iv) 200314

   The given number = 200314

   For a number to be divisible by 9 sum of digits must be divisible by 9.

   Sum of its digits = 2 + 0 + 0 + 3 + 1 + 4 = 10

   Since 10 is not divisible by 9, therefore 200314 is not divisible by 9.

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