The 3<sup>rd</sup> and 6<sup>th</sup> term of an arithmetic progression are 13 and -5 respective…

The sum of the first 16 terms of an AP whose first term and third term are 5 and 15 respectively is

The number of terms of the A.P. 3, 7, 11, 15, ....... to be taken so that the sum is 406 is

What is the sum of all 3 digit numbers that leave a remainder of '2' when divided by 3?

If the sum of three consecutive terms of an increasing A.P. is 51 and the product of the first and third of these terms …

The first term of an Arithmetic Progression is 22 and the last term is -11. If the sum is 66, the number of terms in the…

Find the n<sup>th</sup> term of the following sequence :</br> 5 + 55 + 555 + . . . . T<sub>n<…

If the Arithmetic mean of 7, 5, 13, x and 9 is 10, then the value of x is