The average of first five multiples of 3 is:

In the afternoon, a student read 100 pages at the rate of 60 pages per hour. In the evening, when she was tired, she rea…

The mean weight of 34 students of a school is 42 kg. If the weight of the teacher be included, the mean rises by 400 gra…

Total of Arun’s marks in Sanskrit and Mathematics together are 80 more than his marks in Science. His average mark…

In a class, the average score of girls in an examination is 73 and that of boys is 71. The average score for the whole c…

Average of a, b, and c is 11; average of c, d and e is 17; average of e and f is 22 and average of e and c is 17. Find o…

16 children are to be divided into two groups A and B of 10 and 6 children. The average percent marks obtained by the ch…

The average of nine number is 50. The average of first five numbers is 54 and that of the last three numbers is 52. Then…