The average weight of Mahesh, Ram and Anwar is 46 kg. If the average weight of Mahesh and Ram be 39 kg and that of Ram and Anwar be 49 kg, then the weight of Ram (in kg) is:
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 38.
Mahesh + Ram + Anwar = 3 × 46 = 138
Mahesh + Ram = 2 × 39 = 78
Ram + Anwar = 2 × 49 = 98
Add (Mahesh + Ram) and (Ram + Anwar):
78 + 98 = Mahesh + 2Ram + Anwar = 176
Subtract (Mahesh + Ram + Anwar):
176 − 138 = Ram = 38