Which of the following interchanges of signs would make the given equation correct?
40 + 45 × 5 – 12 ÷ 4 = 1
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. ÷ and ×.
Given expression: 40 + 45 × 5 - 12 ÷ 4 = 1
Replacing letters with the sign in the expression;
40 + 45 ÷ 5 - 12 × 4 = 1
= 40 + 9 - 12 × 4 = 1
= 40 + 9 - 48 = 1
= 49 - 48 = 1
= 1 = 1
Hence, the correct answer is "÷ and ×".