Q. The average weight of five persons sitting in a boat is 38 kg. The average weight of the boat and the persons sitting in the boat is 52 kg. What is the weight of the boat?
Answer:
122 kg
Notes: Weight of the boat =
$latex = 6\times 52 - 5\times 38$
$latex = 312 - 190 = 122 kg$
Hence option [C] is the right answer.