The following equation becomes mathematically correct when you interchange either the sign or the numbers as indicated in the question. Find the correct alternative. Given equation: (16 - 4) x 6 ÷ 2 + 8 = 30
Correct answer: B. ÷ and -
- A. 4 and 2
- B. ÷ and -
- C. 16 and 6
- D. - and +
- E. None of these
Explanation
As per option A), if we interchange 4 and 2 in the above equation, we get (16 - 2) x 6 ÷ 4 + 8 = 30 ---> 14 x (6/4) + 8 = 30 ---> 21 + 8 = 30 ---> 29 = 30 ---> which is False. As per option B), if we interchange the symbols '÷ and -' in the above equation, we get (16 ÷ 4) x 6 - 2 + 8 = 30 ----> 4 x 6 - 2 + 8 = 30 ----> 24 - 2 + 8 = 30 ----> 30 = 30 ---> which is True.
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