Assign mean ??

Question

a= 15 .
b=..
assign a ,b .

Answer 1

'=' operation means the you are copying value on the right to the variable on left. I hope it's clear!!
i.e. after assigning 'a' will have value as 15.

Answer 2

assign means to give value, if you assign A value of 10 , like this a=10; then a will have value of 10