The average weight of Chetan, Vipul and Mohan is 46 kg. If the average weight of Chetan and Vipul be 40 kg and that of Vipul and Mohan be 44 kg, then the weight of Vipul (in kg) is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 30.
Total weight of Chetan + Vipul + Mohan = 46 × 3 = 138
Chetan + Vipul = 40 × 2 = 80
Vipul + Mohan = 44 × 2 = 88
Adding both: C + 2V + M = 168
But C + V + M = 138
So, (C + 2V + M) − (C + V + M) = 168 − 138 = V
Therefore, Vipul’s weight = 30 kg