Question

43*85 , replace by the number to make it divisible by 15

Answer 1

Answer:

1 or 4 or 7

Step-by-step explanation:

according to the divisibility rule of 15 a number will be divisible by 15 if and only it is divisible by both 3 and 5.

we can find that the number is divisible by 5 because the last digit is 5.

if it should be divisible by 3 the divisibility rule of 3 states that the sum of the digits of the number should be divisible by 3.so if we replace the it with 1,4of 7

then and only the number will be divisible by 15.

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