Find out the two signs to be interchanged to make the following equation correct.
10 + 10 × 10 - 10 ÷ 10 = -89
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. × and ÷.
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Given Equation: 10 + 10 × 10 - 10 ÷ 10 = -89 Check all the options: Option 1: - and × After replacement the equation becomes; = 10 + 10 - 10 × 10 ÷ 10 = 10 is not equal to -89. Hence, option 1 is not the correct answer. |
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Option 2: × and ÷ After replacement the equation becomes; = 10 + 10 ÷ 10 - 10 × 10 = -89 is equal to -89. Hence, option 2 is the correct answer. |
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Option 3: + and × After replacement the equation becomes; = 10 × 10 + 10 - 10 ÷ 10 = 109 is not equal to -89. Hence, option 3 is not the correct answer. |
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Option 4: - and ÷ After replacement the equation becomes; = 10 + 10 × 10 ÷ 10 - 10 = 10 is not equal to -89. Hence, option 4 is not the correct answer. |