Question

Find a and b so that given/numbers are divisible by 3 and 5 . 1.) 8ab4b

Answer 1

let a be 6 and b be 0.then no. 8ab4b= 86040 now let check divisibility by 3 - ( 8+6+0+4+0) by 3= 18 by 3=6 ( no.is divisible by 3 because it's digits sum is divisible by 3). And, no. is also divisible by 5 because it ends with 0.

Answer 2

ANSWER is (8+8+5+4+5) =

88545