Question

x + = x++ + ++ x + --x + x; [ x = 5 ]
1. 29
2. 28
3. 26
4. 25

Please explain also how we get the answer for it

Answer 1

Answer:

1)29

Explanation:

5+=5+7+6+6

Answer 2

"Option 1: 29".

Explanation :    

x + = x++ + ++ x + --x + x; [ x = 5 ]

Step 0:

First, take the right-hand side to perform the calculation. Keep the left-hand side value till last.

Value of left-hand side x =5.

Step 1:

x = 5 + (++x) + (--x) + x;

Step 2:

x = 5  + (++x) + (--x) + x;

x++ result is 5, but the variable ‘x’ value has been incremented to 6. so the next ‘x’ value is 6. Here next x value has increment in prefix. So now x value is 7.

x = 5 + 7  + (--x) + x;

Step 3:

Now x have minus in prefix which makes the value 7 to 6

x = 5 + 7  + 6+ x;

Step 4:

Finally, the x value is 6.

x = 5 + 7  + 6+ 6

x=24;

Step 5:

Now add both the right and left operand,

For left x value of x is 5 and the right operand x value is 24.

5+24=29

X=29.