The average weight of Rakesh, Shivam and Rupesh is 46 kg. If the average weight of Rakesh and Shivam be 40 kg and that of Shivam and Rupesh be 48 kg, then the weight of Shivam (in kg) is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 38 .
Total of three = 3 × 46 = 138
Rakesh + Shivam = 2 × 40 = 80
Shivam + Rupesh = 2 × 48 = 96
Rupesh = 138 − 80 = 58
Shivam = 96 − 58 = 38