If sum of n terms is given by Sn = 3n2 + 5n, then the common difference of this AP is:
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An athlete wants to improve his stamina, so he decides to increase the distance he runs by half a kilometer every day. If he starts with 5 km on first day, find how much he runs on the 10 th day
A tree in each year grows 4cm less than it grew in previous year. If it grew 1 metre in the first year, in how many years will it have ceased growing and what will be its height then,
Which term of the A.P 10,8,6,… will be the first negative term?
During the festival season , a girl wants to prepare a design at the entrance to her house. The pattern is such that starting with one dot she wants to go on increasing the number of dots by 3 every time. In which row will she have 55 dots?
Find the fifth term of an A.P whose first term is -1 and common difference is -3
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