Question : Directions: After interchanging the given two numbers and two signs what will be the values of equations (I) and (II) respectively? × and ÷, 7 and 9 I. 8 × 3 ÷ 6 + 9 – 7 II. 9 – 7 × 1 + 6 ÷ 3
Option 1: 0, 8
Option 2: 14, 16
Option 3: 6, 9
Option 4: 10, 11
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Correct Answer: 14, 16
Solution : Given: I. 8 × 3 ÷ 6 + 9 – 7 II. 9 – 7 × 1 + 6 ÷ 3
Equation (I): 8 × 3 ÷ 6 + 9 – 7 On interchanging the mathematical signs and numbers, the equation becomes – = 8 ÷ 3 × 6 + 7 – 9 = 16 + 7 – 9 = 23 – 9 = 14 Equation (II): 9 – 7 × 1 + 6 ÷ 3 On interchanging the mathematical signs and numbers, the equation becomes – = 7 – 9 ÷ 1 + 6 × 3 = 7 – 9 + 6 × 3 = 7 – 9 + 18 = 25 – 9 = 16
Hence, the second option is correct.
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