The average weight of a class of 24 students is 35...

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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. 50 kg

C. 53 kg

D. 55 kg

Answer: Option A

Solution(By Examveda Team)

Weight of the teacher
= (35.4 × 25 - 35 × 24) kg
= 45 kg

This Question Belongs to Arithmetic Ability >> Average

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Comments ( 1 )

Pir Zada :

2 years ago

Sol
35+(0.4)×25/1
35+10=
45Kg

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