If the signs are interchanged as follows:
-
'+' means '×'
-
'-' means '+'
-
'×' means '-'
What is the value of the following expression?
10 + 2 - 3 × 1 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 22.
Given expression: 10 + 2 - 3 × 1 = ?
By interchanging the sign:
10 × 2 + 3 - 1 = ?
? = 20 + 3 - 1
? = 23 - 1 = 22