Advertisements
Advertisements
प्रश्न
The mean weight of 10 boys is 50 kg. When one boy left, the mean weight becomes 49 kg. The weight of that boy is ______.
विकल्प
50 kg
49 kg
59 kg
55 kg
MCQ
रिक्त स्थान भरें
Advertisements
उत्तर
The mean weight of 10 boys is 50 kg. When one boy left, the mean weight becomes 49 kg. The weight of that boy is 59 kg.
Explanation:
The mean weight of 10 boys is 50 kg
Total weight of the 10 boys = 10 × 50 = 500 kg
When one boy left, the mean weight becomes 49 kg
Total weight of the remaining 9 boys = 9 × 49 = 441 kg
The weight of the boy who left = 500 − 441 = 59 kg
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
