Which two signs need to be interchanged to make the given equation correct?
20 ÷ 10 × 100 - 10 + 100 = 110
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. + and -.
| Understanding |
|---|
|
Given Equation: 20 ÷ 10 × 100 - 10 + 100 = 910 Check all the options: Option 1: + and × After replacement the equation becomes; = 20 ÷ 10 + 100 - 10 × 100 = -898 is not equal to 110. Hence, option 1 is not the correct answer. |
|
Option 2: × and - After replacement the equation becomes; = 20 ÷ 10 - 100 × 10 + 100 = -898 is not equal to 110. Hence, option 2 is not the correct answer. |
|
Option 3: ÷ and × After replacement the equation becomes; = 20 × 10 ÷ 100 - 10 + 100 = 92 is not equal to 110. Hence, option 3 is not the correct answer. |
|
Option 4: + and - After replacement the equation becomes; = 20 ÷ 10 × 100 + 10 - 100 = 110 is equal to 110. Hence, option 4 is the correct answer. |