Question

The average weight of 5 persons, sifting in a boat, is 38 Kg. If the average weight of the boat and the persons sitting in the boat is 52 Kg, what is the weight of the boat?

• A. 228 Kg
• B. 122 Kg
• C. 232 Kg
• D. 242 Kg
• E. None of these

Answer 1

The correct option is B 122 Kg

Average weight of 5 persons = 38 Kg
$\therefore$ Total weight of these five persons
$=38\times 5=190Kg$
Now, average weight of (the boat + 5 persons)
= 52 kg
$\therefore$ Total weight of (the boat + 5 persons)
$=52\times 6=312Kg$
$\therefore$ Weight of the boat = 312 - 190 = 122 Kg