Question

. In a class, the average weight of 40 students is 35.5 kg. If their average weight along with the class teacher is 36 kg, what is the weight in kg of the class teacher ? (1) 55 (2) 55.5 11. from tillade A to village Bat a speed of 40 km per hour. On the 131,56 (4) 54​

Answer 1

Average weight of 40 students is 35.5 years

total weight of 40 students is 35. 5×40 years

=1420 years

average weight with class teacher = 36 years

total weight with class teacher = 36×4 years

=1476 years

So, weight of the class teacher

=(1476-1420)years

=56 years