Postfix operation with single digit operand


#1

Following postfix operation with single digit operand is evaluated using a stack: 823$/23*+51*- where $ is exponentiation -> $=^ operator. The top two elements of the stack after the first * is evaluated as:
a) 6,1 b) 5,7 c) 3,2 d) 4,3


#2

6,1 in top of the stack after 1st * evaluation.

823$/23*+51*-
8(2$3)/23*+51-
88/23*+51-
(8/8)23*+51-
123*+51-
1(2*3)+51-
16+51-
top of the stack is 6,1