Question : Directions: After interchanging the given two signs what will be the values of equation (I) and (II) respectively? + and – I. 18 ÷ 3 + 6 × 2 – 8 II. 15 × 3 – 45 ÷ 5 + 30
Option 1: 24 and 2
Option 2: 3 and 25
Option 3: 2 and 66
Option 4: 2 and 24
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Correct Answer: 2 and 24
Solution : Given: I. 18 ÷ 3 + 6 × 2 – 8 II. 15 × 3 – 45 ÷ 5 + 30
After interchanging + and – the equation becomes – I. 18 ÷ 3 – 6 × 2 + 8 = 6 – 6 × 2 + 8 = 6 – 12 + 8 = 2 II. 15 × 3 + 45 ÷ 5 – 30 = 15 × 3 + 9 – 30 = 45 + 9 – 30 = 24
So, the equations are equal to 2 and 24. Hence, the fourth option is correct.
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