Let X be the median and Y the mode of the following set of numbers: 15 60 30 40 60 90. What is the average (arithmetic mean) of X and Y?
Correct answer A. 55
Tip: press A, B, C or D to answer, and N for the next question.
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See allThe average weight of a group of boys and girls is 37.5 kg. The average weight of the boys is 40 kg and that of girls is 35 kg. If the number of boys is 25 find the number of girls?
Correct answer B. 25
The average age of a class of 40 boys is 11.95 years. The average of the class is raised to 12 years by the coming of a new boy. How old is this new boy?
Correct answer D. 14 years
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The average age of a class of 60 boys which is 11.9 years is raised to 12 years by coming of a new boy the age of the new boy is?
Correct answer C. 18 years
The average expenditure of a man for the first 7 months is Rs. 130 and for the next 5 months is Rs. 140. He withdraws a sum of Rs.110 from his bank. His average monthly earning is?
Correct answer A. Rs. 125
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