Find out the two signs to be interchanged for making following equation…
2024
Find out the two signs to be interchanged for making following equation correct
2 + 3 x 8 + 24 – 6 + 3 x 2 / 24 = 12
- A.
+ and –
- B.
– and /
- C.
+ and x
- D.
+ and /
Attempted by 191 students.
Show answer & explanation
Correct answer: B
Explanation:
Interchanging the minus sign (the one between 24 and 6) and the division sign (the one after 3 × 2) gives the expression:
2 + 3 × 8 + 24 / 6 + 3 × 2 - 24 = 12
First evaluate multiplications and divisions (left to right): 3 × 8 = 24; 24 / 6 = 4; 3 × 2 = 6.
Then evaluate additions and subtraction left to right:
2 + 24 = 26
26 + 4 = 30
30 + 6 = 36
36 - 24 = 12
So the equation becomes 12 = 12, which is true. Therefore interchanging the minus sign and the division sign makes the equation correct.