Find out the two signs to be interchanged to make the following equation correct.
30 + 28 × 3 - 16 ÷ 4 = -50
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. + and -.
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Given Equation: 30 + 28 × 3 - 16 ÷ 4 = -50 Check all the options: Option 1: × and ÷ After replacement the equation becomes; = 30 + 28 ÷ 3 - 16 × 4 = -24.66 is not equal to -50. Hence, option 1 is not the correct answer. |
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Option 2: + and - After replacement the equation becomes; = 30 - 28 × 3 + 16 ÷ 4 = -50 is equal to -50. Hence, option 2 is the correct answer. |
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Option 3: - and × After replacement the equation becomes; = 30 + 28 - 3 × 16 ÷ 4 = 46 is not equal to -50. Hence, option 3 is not the correct answer. |
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Option 4: - and ÷ After replacement the equation becomes; = 30 + 28 × 3 ÷ 16 - 4 = 31.25 is not equal to -50. Hence, option 4 is not the correct answer. |