Question : Directions: If 4 × 9 × 3 = 4 and 5 × 3 × 1 = 3, then 9 × 9 × 7 = ?
Option 1: 5
Option 2: 6
Option 3: 7
Option 4: 9
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Correct Answer: 5
Solution : Given: 4 × 9 × 3 = 4, 5 × 3 × 1 = 3
The pattern in the equation→4 × 9 × 3 = 4 is 4 + 9 + 3 = 16 = 42 The pattern in the equation→5 × 3 × 1 = 3 is 5 + 3 + 1 = 9 = 32
Here, the sign × means +. Using the same pattern in equation 9 × 9 × 7 The equation becomes – 9 + 9 + 7 = 25 = 52 Therefore, the square root of 25 is equal to 5.
Hence, the first option is correct.
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Question : Directions: By Interchanging the given two numbers which of the following equations will be not correct? 9 and 6
Option 1: 7 + 6 × 4 ÷ 9 – 8 = 5
Option 2: 6 × 8 – 9 ÷ 3 + 5 = 75
Option 3: 9 × 7 + 4 ÷ 1 – 6 = 38
Option 4: 7 × 6 ÷ 3 + 9 – 8 = 19
Question : Directions: By Interchanging the given two numbers which of the following equations will be correct? 7 and 4
Option 1: 4 – 7 + 6 ÷ 2 × 3 = 12
Option 2: 4 × 3 + 7 – 9 ÷ 3 = 20
Option 3: 7 + 4 × 2 – 6 ÷ 2 = 17
Option 4: 7 + 5 × 2 – 4 ÷ 1 = 9
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: By interchanging the given two signs and numbers which of the following equations will be correct? × and +, 9 and 6
Option 1: 7 × 6 ÷ 3 + 9 – 8 = 17
Option 2: 6 × 8 – 9 ÷ 3 + 5 = 50
Option 3: 7 + 6 × 4 ÷ 9 – 8 = 8
Option 4: 9 × 7 + 4 ÷ 1 – 6 = 7
Question : Directions: By interchanging the given two signs and numbers which of the following equations will be correct? × and ÷, 7 and 9
Option 1: 9 – 7 × 2 + 6 ÷ 3 = 11
Option 2: 9 + 4 × 3 – 7 ÷ 1 = 40
Option 3: 8 × 3 ÷ 6 + 9 – 7 = 14
Option 4: 9 × 3 + 4 ÷ 2 – 7 = 18
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