Question
Select the correct combination of mathematical signs
that can sequentially replace the $ signs and make the equation correct. 54 $6$ 2 $12$ 24 $ 6Solution
Given: 54 $6$ 2 $12$ 24 $ 6 On substituting the mathematical operators: In option a: 54 ÷ 6 X 2 + 12 – 24 = 6 9 X 2 + 12 – 24 = 6 18 + 12 – 24 = 6 30 - 24 = 6 6 = 6 In option b: 54 X 6 ÷ 2 - 12 + 24 = 6 54 X 3 - 12 + 24 = 6 162 - 12 + 24 = 6 186 – 12 = 6 174 ≠ 6 In option c: 54 + 6 - 2 ÷ 12 X 24 = 6 54 + 6 - (2/12) X 24 = 6 54 + 6 – 4 = 6 60 - 4 = 6 56 ≠ 6 In option d: 54 - 6 + 2 X 12 ÷ 24 = 6 54 - 6 + 2 X 0.5 = 6 54 - 6 + 1 = 6 49 ≠ 6
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