If average weight of a family is ‘y’ kg. If a guest weighing 30 kg – McqOptions

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1.	If average weight of a family is ‘y’ kg. If a guest weighing 30 kg arrives then the average weight is increases by 1 kg. If the weight of this guest had been 18 kg then the average weight of the family would have decreased by 1 kg. Find ‘y’.
A.	28
B.	24
C.	30
D.	22
Answer» C. 30

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