Mathematics
The mean of 20 numbers is 20. If 2 is added to each of the first 10 numbers, find the mean of the new set of 20 numbers.
Related Questions
Find the mean of the following numbers :
62, 58, 84, 71, 68, 70, 53, 63, 56 and 65.
Find median for the following data :
50 59 27 78 54 72 58 57 31 65 42 60 22 37 40 and 28 The mean of 2, 12, 4, 9, 5 and 16 is x. The median of 4, 3, x, x - 1, 12, and 16 is y. Find the values of x and y.
The base of a triangular field is 2.4 times its height. If the cost of levelling the field at the rate of ₹ 20 per square metre is ₹ 9,600; find its base and height.