The average weight of a family of five members whose weights are 40 kg, 49 kg,…

2026

The average weight of a family of five members whose weights are 40 kg, 49 kg, 57 kg, 77 kg and 35 kg is:

  1. A.

    51.6 kg

  2. B.

    53.6 kg

  3. C.

    50.6 kg

  4. D.

    52.6 kg

Attempted by 144 students.

Show answer & explanation

Correct answer: A

Step 1: Calculate the sum of all observations.
Sum of the weights of all five family members = 40 + 49 + 57 + 77 + 35 = 258 kg.

Step 2: Calculate the average.
Divide the total weight by the number of members (5) to find the average:
Average = 258 / 5 = 51.6 kg.

Final Answer: Option 1

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