Which two numbers (not digits) should be interchanged to make the given equation correct?
6 × 3 + 8 ÷ 2 + 21 + 5 × 4 – 14 ÷ 7 = 53
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 21 and 14.
On interchange numbers,
6 × 3 + (8 ÷ 2) + 14 + (5 × 4) – (21 ÷ 7) = 53
18 + 4 + 14 + 20 - 3 = 53
22 + 34 - 3 = 53
56 - 3 = 53
53 = 53