Question

the mean weight of a class of 20 students is 48 kg. two more students weighing 60 kg and 58 kg respectively join the class . what is the weight of the class now ?​

Answer 1

Step-by-step explanation:

if the 20 students=48kg

so the 48/20=2.4kg of 1 student

so 60/2.4=25 students

and 58/2.4=24.1666667 students

sum it 25+24.1666667+20=69.1666667

69.1666667×2.4=166 weight of class now