Which two signs should be interchanged to make the given equation correct?
459 + 17 × 12 ÷ 72 - 47 = 349
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. ÷ and +.
Given statement : 459 + 17 × 12 ÷ 72 - 47 = 349
From option (1);
According to the question, after interchanging the signs :
⇒ 459 ÷ 17 × 12 + 72 - 47 = 349
Using the BODMAS rule,
⇒ (459 ÷ 17) × 12 + 72 - 47 = 349
⇒ (27 × 12) + 72 - 47 = 349
⇒ 324 + 72 - 47 = 349
⇒ 396 - 47 = 349
⇒ 349 = 349
(LHS = RHS)
Hence, the correct answer is ÷ and +.