The sum of five consecutive even numbers is 30. What is the sum of the squares of these numbers?

Let the first number be x. [if gte msEquation 12]>

The mode and the mean of grouped data are 25 and 29.5 respectively. Find the median, correct to two places of decimal, using empirical relation.

The mean of the sample data = 60 and median = 48. Find the mode of this distribution.

In an A.P a9 = 40, then find sum of first 17 terms of that A.P.

Find the sum of geometric progression, 40, 20, 10, 5, …..

If p = q + 2, where q is the product of six consecutive positive integers, then which of the following is/are true?

a. p is a perfect cube

Find the 5

^{th}term of the geometric progression whose first term is 128 and common multiple is 1/2.If 8 times the eighth term of an Arithmetic Progression (AP) is equal to 12 times its twelfth term, then the 20th term of the AP will be

The arithmetic means of the following data is.23,17,20,19,21,20,20

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