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Quiz Questions And Answers
The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?
The average of six numbers is 3.95. The average of two of them is 3.4, while the average of the other two is 3.85. What is the average of the remaining two numbers?
The average of 10 numbers is 40.2 Later it is found that two numbers have been wrongly copied. The first is 18 greater than the actual number and the second number added is 13 inst
The average attendance in a school for the first 4 days of the week is 30 and for the first 5 days of the week is 32. The attendance on the fifth day is
The average attendance of a class for the first three days of a month was 38. The average for the second, third and the fourth day was 42. The attendance on the fourth day being 42
The number of observations in a group is 40. If the average of first 10 is 4.5 and that of the remaining 30 is 3.5, then the average of the whole group is :
The average temperature for Monday, Tuesday and Wednesday was 55°, the average for Tuesday, Wednesday and Thursday was 60°, that for Thursday being 56°, what was the temperature on
Last year, a Home Appliance Store sold an average (arithmetic mean) of 42 microwave ovens per month. In the first 10 months of this year, the store has sold an average (arithmetic
A car owner buys petrol at Rs 7.50, Rs 8.00 and Rs 8.50 per litre for three successive years. What approximately is his average cost per litre of petrol if he spends Rs 4000 each y
The average age of 36 students in a group is 14 years. When teacher's age is included to it, the average increases by one. What is the teacher's age in years?
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