The sum of five numbers is 655. The average of the first two numbers is 75 and the third number is 114. Find the average of the remaining two numbers?

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  1. 190
  2. 195.5
  3. 189
  4. 196.5

Answer (Detailed Solution Below)

Option 2 : 195.5
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Detailed Solution

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Given:

Sum of five numbers = 655

Average of first two numbers = 75

Third number = 114

Formula used:

Sum of numbers = Average × Number of terms

Remaining sum = Total sum - (Sum of first two numbers + Third number)

Average = Remaining sum ÷ Number of terms

Calculation:

Sum of first two numbers = 75 × 2 = 150

⇒ Remaining sum = 655 - (150 + 114)

⇒ Remaining sum = 655 - 264

⇒ Remaining sum = 391

⇒ Average of remaining two numbers = 391 ÷ 2

⇒ Average = 195.5

∴ The correct answer is option (2).

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