The arithametic mean between 5 and 9 is

Given 5^th term of an A.P is 11 and 9^th term is 7, then 16^th term is

The sum of a series in A.P is 128. If the first term is 2 and the last term is 14, then the common difference is

The sum of 30 terms of a series in A.P whose last term is 98, is  1635. Then the first term and the common difference is

The n^th term of an A.P is 4n-1, Then the 18^th term of the A.P is

The 5^th terms of an AP whose 10^th term is 43 and common difference is 4 is

The sum of n terms of a series is (n²=2n) for all values of n. Then the first 3 terms of the series is

A man saved Rs. 16,500 in 10 years. In each year after the first he saved Rs 100. Then how much did he save in the first year?

On each birthday John received form his father Rs.5 for each year of his age. The total sum John had received by the time he was 21 years old is

If 8k+4, 6k-2 and 2k+1 will form an A.P then the value of k is