Math, asked by Arunsarath, 1 year ago

A person saved Rs 28,750 in 10 years.In each year after the first year he saved Rs 150 more than he did in the proceeding year.The amount of money he saved in the first year was.

Answers

Answered by rahmatullahbaigmirza

12.5......................

Answered by sunnydey

let the first year amount be = a
common difference = 150
therefore, S10 = 10/2{ 2a + (10-1 )150}
28750 = 5{2a + (9×150)}
28750 = 5{2a + 1350}
28750/5 = 2a + 1350
5750 -1350 = 2a
4400 = 2a
a = 2200

therefore, amount of money in the first year is Rs 2200

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