Which two signs should be interchanged to make the given equation correct?
15 ÷ 3 + 15 - 3 × 3 = 47
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. - and ×.
Given: 15 ÷ 3 + 15 - 3 × 3 = 47
Now, checking options one by one,
Option (1) - and × →
After Interchanging the signs we get,
15 ÷ 3 + 15 × 3 - 3 = 47
⇒ 5 + 15 × 3 - 3
⇒ 5 + 4 5 - 3
⇒ 50 - 3 = 47
Here the equation is satisfied so there is no need to check other options.
Hence, - and × is the correct answer.