12. The mean weight of a class of 20 students is 48 kg. Two more stude – InterviewSolution

1.	12. The mean weight of a class of 20 students is 48 kg. Two more students weighing 60 kg and 58 kgrespectively join the class. What is the mean weight of the class now?Dighn rogurod R6 73 75 and 78 marks in four tests, What is the least number of marks she can secure in
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