25. The average weight of A, B and C is 35 kg. If
the average weight of A and B be 30 kg and
that of B and C be 33 kg, then the weight of B
is :
(a) 17 kg
(b) 20 kg
(c) 21 kg
(d) 31 kg
Answers
Answered by
0
Answer:
Total weight of 24 students =24×35=840kg
Total weight of 25 persons with teacher =25×35.4=885kg.
∴ Weight of teacher =(885−840)kg=45kg.
Answered by
0
Answer:
C IS ANSWER
Step-by-step explanation:
21 KG
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