The average mass of Caili and her three sisters is 42kg. If Caili i – McqOptions

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1.	The average mass of Caili and her three sisters is 42kg. If Caili is 48kg, what is the average mass of her three sisters in kg?
A.	33 kg
B.	36 kg
C.	40 kg
D.	42 kg
Answer» D. 42 kg

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