1.

The mean weight of 8 students is 57 kg. The weight of each student is 55 kg, 49 kg, 57 kg, 63 kg, 68 kg, 52 kg, X kg and Y kg. What is the sum of X and Y?

A. 116 kg
B. 112 kg
C. 110 kg
D. 114 kg
Answer» C. 110 kg


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