Which two signs should be interchanged to make the given equation correct?
13 × 6 + 24 ÷ 6 – 17 = 91
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. + and –.
Given equation : 13 × 6 + 24 ÷ 6 - 17 = 91
From option 4: + and –
Now, by interchanging the signs:
⇒ 13 × 6 - 24 ÷ 6 + 17 = 91
By using the BODMAS rule,
⇒ 13 × 6 - (24 ÷ 6) + 17 = 91
⇒ (13 × 6) - 4 + 17 = 91
⇒ 78 + 17 - 4 = 91
⇒ 95 - 4 = 91
⇒ 91 = 91
(LHS = RHS)
Hence, the correct answer is + and –.