Question

The average weight of a class of 24 students is 35 kg if the weight of the teacher be included ,the average rises by 400g .The weight of the teacher is?

Answer 1

Answer:

Step-by-step explanation:x/24=35

X=840

840+y/25=35.4

Y=45kg

Weight of teacher is 45 kg

Answer 2

Answer:

Step-by-step explanation:

the average got increased when teacher weight is added...so,34+2/5=35.4

now,the class total weight initially - finally =35*24-35.4*25=45 kg.