Question

When 355 is added to 5A7 the result is 8B2 . 8B2 is divisible by 3 . what is the largest possible value of A
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Answer 1

Answer:

355+5a7 gives 8b2

so let the (b) be as 7

for that we need to add a no. in the place of (a)

first we try with 1

when add with 1 we get 872

but it is not divisible by 3

so now we add 2 In the place of a

we get 882

it is divisible by 3

so the answer is 2

we get the right answer when we add 2 in the place of a