Which two numbers (not the digits of the numbers), from amongst the given options, should be interchanged to make the given equation correct?
42 ÷ 2 +13 − 5 × 7 = 9
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1, i.e., 2 and 7.
After interchanging numbers,
(42 ÷ 7) +13 − 5 × 2 = 9
6 + 13 - 10 = 9
19 - 10 = 9
9 = 9