Which two numbers (not the digits of the numbers) and two signs should be
interchanged to make the given equation correct?
27 ÷ 9 − 63 × 3 + 10 = 78
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3, i.e., 27 and 63; + and−.
27 ÷ 9 − 63 × 3 + 10 = 78
(63 ÷ 9) + 27 × 3 - 10 = 78
7 + 81 - 10 = 78
88 - 10 = 78
78 = 78