Question

find the value of b if divisible by 3 in 501bb7

Answer 1

it may be 3,3......or any multiple of 3.........hope helps❤️❤️❤️

Answer 2

if 501bb7 is divisible by 3 then sum of digit's is also divisible by 3,

then
sum of digit's=5+0+1+b+b+7=13+2b,

so here minimum possible value of b so that the number will be exactly divisible by 3 is 3,

if we put b=1,

then
sum of digit's will be=13+2×1=15, which is exactly divisible by 3