A boy agrees to work at the rate of one rupee on the first day, two rupees on the second day, and four rupees on third d…

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 …

If the first term of an A.P. is 2 and common difference is 4, then the sum of its 40 term is

If in an A.P., S<sub>n</sub> = n<sup>2</sup>p and S<sub>m</sub> = m<sup>2</…

How many terms are there in 20, 25, 30 . . . . . . 140?

If a + 1, 2a + 1, 4a - 1 are in A.P., then the value of a is:

Which term of the A.P. 92, 88, 84, 80, ...... is 0?

The 3<sup>rd</sup> and 7<sup>th</sup> term of an arithmetic progression are -9 and 11 respective…