Question : Directions: After interchanging the given two numbers and two signs what will be the values of equations (I) and (II) respectively? – and ×, 6 and 4 I. 7 × 6 + 8 ÷ 2 - 4 II. 4 – 7 × 6 + 8 ÷ 2
Option 1: 27, 42
Option 2: 27, 47
Option 3: 27, 49
Option 4: 25, 40
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Correct Answer: 27, 42
Solution : Given: I. 7 × 6 + 8 ÷ 2 – 4 II. 4 – 7 × 6 + 8 ÷ 2
Let's solve each equation after interchanging signs and numbers according to the instructions. On interchanging the signs and numbers in the first equation, we get – = 7 – 4 + 8 ÷ 2 × 6 = 7 – 4 + 4 × 6 = 7 – 4 + 24 = 27 On interchanging the signs and numbers in the second equation, we get – = 6 × 7 – 4 + 8 ÷ 2 = 6 × 7 – 4 + 4 = 42 – 4 + 4 = 42
So, 27 and 42 are the required answers to the given equations. Hence, the first option is correct.
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Question : Directions: By interchanging the given two signs and numbers which of the following equations will be correct? – and +, 6 and 3
Option 1: 7 – 3 × 2 ÷ 6 + 4 = 17
Option 2: 8 × 3 – 6 + 4 ÷ 2 = 49
Option 3: 7 + 6 ÷ 3 × 8 – 5 = 35
Option 4: 9 – 6 ÷ 4 + 3 × 7 = 8
Question : Directions: After interchanging the given two numbers and two signs what will be the values of equations (I) and (II) respectively? + and ×, 5 and 4 I. 4 + 6 × 5 – 7 ÷ 1 II. 5 × 3 – 4 + 8 ÷ 2
Option 1: –9, –8
Option 2: 30, –13
Option 3: 20, 6
Option 4: 27, –13
Question : Directions: After interchanging the given two numbers and two signs what will be the values of equations (I) and (II) respectively? × and –; 4 and 2 I. 7 – 5 × 4 + 8 ÷ 2 II. 7 × 3 – 8 ÷ 2 + 4
Option 1: 25; 23
Option 2: 37; 25
Option 3: 35; 3
Option 4: 41; 47
Question : Directions: By interchanging the given two signs which of the following equations will be not correct? + and ÷
Option 1: 18 + 6 – 6 ÷ 3 × 3 = 6
Option 2: 18 + 2 × 6 ÷ 3 – 7 = 50
Option 3: 7 × 8 ÷ 4 + 2 – 6 = 49
Option 4: 6 × 9 + 3 – 24 ÷ 8 = 2
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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