Question : The average of p, q, r, and s is 30. If the average of p and q is 12, then what will be the average of r and s?Option 1: 50Option 2: 52Option 3: 48Option 4: 56 (2024)

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Question : The average of p, q, r, and s is 30. If the average of p and q is 12, then what will be the average of r and s? Option 1: 50 Option 2: 52 ...

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Question : The average of p, q, r, and s is 30. If the average of p and q is 12, then what will be the average of r and s?

Option 1: 50

Option 2: 52

Option 3: 48

Option 4: 56

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Correct Answer: 48

Solution : Sum of p, q, r, s = Average × count = 30 × 4 = 120
Sum of p, q = Average × count = 12 × 2 = 24
Sum of r, s = Sum of p, q, r, s – Sum of p, q = 120 –24 = 96
$\therefore$ Average of r and s = $\frac{\text{Sum of r, s}}{\text{count}}=\frac{96}{2}= 48$
Hence, the correct answer is 48.

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Question : The average of p, q, r, and s is 30. If the average of p and q is 12, then what will be the average of r and s?Option 1: 50Option 2: 52Option 3: 48Option 4: 56 (2024)

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