The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?

Related Mcqs:

The average of first 10 odd numbers is_____________?

A. 11 B. 10 C. 12 D. 17...

The average salary of a person for the months of January, February, March and April is Rs.8000 and that for the months February, March, April and May is Rs.8500. If his salary for the month of May is Rs.6500, find his salary for the month of January?

A. 3000 B. 2500 C. 4500 D. 5000...

The average age of seven persons sitting in a row facing east is 28 years. If the average age of the first three persons is 21 years and the average age of the last three persons is 34 years, then find the age of the person sitting in the middle of the row?

A. 30 Years B. 31 years C. 26 years D. 33 years...

The average of women and child workers in a factory was 15%yr. The average age of all the 16 children was 8yr and average age of women workers was 22 yrs if ten women workers were married then the number of unmarried women workers were________?

A. 16 B. 12 C. 8 D. 6...

The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.

A. 47.55 kg B. 48 kg C. 48.55 kg D. 49.25 kg...