Which two numbers (not digits) should be interchanged to make the given equation correct?
104 ÷ 8 – 15 + 4 × 26 = 21
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 8 and 26.
Given equation: 104 ÷ 8 – 15 + 4 × 26 = 21
After interchanging 8 and 26, the equation is:
⇒ 104 ÷ 26 – 15 + 4 × 8 = 21
⇒ 4 – 15 + 4 × 8 = 21
⇒ 4 – 15 + 32 = 21
⇒ 36 - 15 = 21