Which two signs should be interchanged to make the given equation correct?
25 + 21 ÷ 3 - 35 × 5 = 81
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. ÷ and ×.
Given equation: 25 + 21 ÷ 3 - 35 × 5 = 81
On interchanging the signs:
25 + 21 × 3 - 35 ÷ 5 = 81
25 + 63 - 7 = 81
88 - 7 = 81
81 = 81