Average weight of 60 students is 35.5 kg. If along with the teacher the average
weight of all of them is 16 kg , what is the weight of the teacher ?
(1) 56 kg
(2) 66 kg (3) 65.5 kg (4) 66.5 kg
Answers
Answered by
1
Explanation:
let sum of weight of all students=x kg
x/60=35.5
x=2130
Now let weight of teacher=y kg
y+x/61=16
y+2130=976
y=-1154
Answered by
1
Explanation:
Description for Correct answer:
Total weight of 35 students
= 35×47.5 kgs.
= 1662 5 kgs.
Total weight of 35 students + teacher =36×48 kgs.
= 1728 kgs
The weight of the teacher
= 1728 - 1662.5 = 65.5 kgs.
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