21. The average weight of 40 students of a class is 52 kg. If the weight of the teacher is included average weight decreases by 200 gms. The weight of decreases by 200 gms. The weight of the teacher is (in kg)
a) 41:2
b) 42:6
d) 43:8
c) 51:7
Answers
Answered by
2
a.
b.
d.
c.
Is the wrong pattern...
Answered by
4
Answer:
c) 43:8
so C is the right option
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