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Q.
The average weight of a class of 24 students is 35 kg. If the weight of the teacher be included, the average rises by 400 g. The weight of the teacher is :
A.
45 kg
B.
46 kg
C.
47 kg
D.
48 kg
View Answer
Correct choice: A
Explanation:
Weight of the teacher = (35.4 x 25 - 35 x 24) kg = 45 kg.
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