The average weight of a class of 33 students is 47 kg. If the weight of the teacher is included, then the average weight of the class increases by 1 kg. What is the weight of the teacher?

he average weight of a class of 50 students is 30 Kgs. When the weight of the teacher is also included, the average weight increases by 1kg. What is the weight of the teacherQuestion 19Answera.81 Kgsb.76 Kgsc.86 Kgsd.71 Kgs

The average weight of 20 students in aclass is increased by 1.8kg when one of the students, who weights 45kg is replaced by a new student. What is the weight of the new student?

The mean weight of a class of  39 students is  40 kg. When a new student is admitted, the mean weight decreases by  200 g. Find the weight of new student.

The average weight of 30 students is 45 kg. 15 students whose average weight is 48 kg left the class and 10 students whose average weight is 50 kg joined the class, and then find the new average weight of the students in the class.a45.2b45.4c45.6d45.8

The average weight of a certain number of students in a group is 72 kg. If 10 students having an average weight of 78 kg leave and 4 students having an average weight of 80 kg join the group, the average weight of the students in the decreases by 0.7 kg. The number of students initially in the group is?