By Interchanging the given two numbers which of the following equation will be not correct?
4 and 7
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 4 ÷ 2 + 3 + 7 = 6.
Option 1: 4 × 2 + 7 - 3 = 15
After interchanging numbers,
⇒ (7 × 2) + 4 - 3 = 15
⇒ 14 + 4 - 3 = 15
⇒ 18 - 3 = 15
⇒ 15 = 15
Option 2: 4 ÷ 2 + 3 + 7 = 6
After interchanging numbers,
⇒ (7 ÷ 2) + 3 + 4 = 6
⇒ 3.5 + 3 + 4 = 6
⇒ 10.5 = 6 (not equal)
Since, we got answer so no need to check further options.
Hence, the correct answer is option 2.