Question

If the number 345 xy is divisible by 90, then (x + y) = ?

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Answer: The number is 34560 and x+y = 6

Step-by-step explanation:

345xy is a number that is divisible by 90

i.e 345xy is divisible by  10 and 9

As we know the divisibility rule of 10 that the unit place should be 0

Therefore value of y = 0

Now as we know the divisibility rule of 9 that sum of digits of the number should be divisible by 9

Therefore 3+4+5+x+y = 9m ⇒ 12 +x+0 = 9m

so the smallest number that should be added to 12 that is also divisible by 9 is 6

Therefore x= 6

Hence, the number is 34560 and x+y = 6