The average weight of Rohan and his three friends is 62 kg. If Rohan’s weight is 8 kg more than the average weight of his three friends, what is Rohan’s weight (in kg)?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 68.
Total weight of Rohan and his three friends = 4 × 62 = 248 kg
Weight of Rohan's three friends = 3x and Weight of Rohan = x + 8
3x + (x + 8) = 248
⇒ 4x + 8 = 248
⇒ 4x = 248 - 8 = 240
⇒ x = 60
Rohan's weight = x + 8 = 60 + 8 = 68 kg