The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.
The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.
ایک کلاس کے 16 لڑکوں کا اوسط وزن 50.25 کلوگرام ہے اور باقی 8 لڑکوں کا وزن 45.15 کلوگرام ہے۔ کلاس کے تمام لڑکوں کا اوسط وزن معلوم کریں۔
Explanation
Average weight of 16 boys = (50.25 × 16 + 45.15 × 8) / 16 + 8
= 804 + 361.20 / 24
= 1165.20 / 24
= 48.55 kg.
ND11-4-2023