Visitor to a show were charged Rs. 15 each on the first day, Rs. 7.50 each on the second day and Rs. 2.50 each on the th…

The average temperature for the first four days of a week is 40.2° C and that of the last four days is 41.3° C. …

There are two sections A and B of a class, consisting of 36 and 44 students respectively. If the average weight of secti…

The average of 2, 7, 6 and x is 5 and the average of 18, 1, 6, x and y is 10. What is the value of y?

30 pens and 75 pencils altogether were purchased for Rs. 510. If the average price of a pencil was Rs. 2, what was the a…

The mean of 20 items is 55. If two items 45 and 30 are removed, the new mean of the remaining items is :

A train covers the first 16 km at a speed of 20 km per hour another 20 km at 40 km per hour and the last 10 km at 15 km …

The average daily income of 7 men, 11 women and 2 boys is Rs. 257.50. If the average daily income of the men is Rs. 10 m…