the internal angles of a polygon are in AP. the smallest angle is 120degree and the common difference is 5 degree . find the number of sides of the polygon and the sum of internal angles .

 

 

there are 25 trees at equal distance of 5 metres in a line with a well , the distance of a well from the nearest tree being 10 metres . a gardener waterws all the trees separately starting from the well and he returns to the well after watering each tree to get water for the next . find the total distance the gardener will cover in order to water all trees.

 

 

a gentleman deposites one paise in a bank on the first of march . in the subsequent days he deposits two paise more than his balance with the bank till the previous day . what will be his balance at the end of the month .

 

 

there are n stones in a line , the distance between the consecutive stones being 1m,3m,5m, ,etc . tthere  is  a basket fixed at the first stone . a man starting from the basket collects all the stones in the basket one by one . find the total distance described by him in collecting all the stones .

 

rates assured , if not given nudge