Average weight of 25 students of a class is 50kg.If the weight of the class teacher is included the average is increased is 1 kg the weight of the teacher is
Answers
Answered by
1
Answer:
76
Step-by-step explanation:
sum of weight of students= average * number of students
25 students weight =50*25=1250
here
* teacher is added .so total members is 26
* average increases 1 ( ie: 50+1 ) =51
weight of 26 members =26*51 =1326
teacher' s weight= (weight of 26 members) - (25 students weight)
=1326-1250
=76
Answered by
0
Answer:
76 kg
Step-by-step explanation:
Average weight of 25 students = 50 kg
Sum of the weight of 25 students
= 50 × 25 = 1250 kg
If the class teacher included the average is increased by 1 kg.
∴ Average weight of 25 students and teacher = 51 kg
∴ Sum of weight
= 26 × 51
= 1326 kg
∴ Class teacher weight
= 1326 - 1250
= 76 kg
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