Math, asked by Sreeramchowdary1073, 1 year ago

First term of an AP is25 and the 20th term is 500 gind the common difference

Answers

Answered by Jaiprasanth12
1

Answer:


Step-by-step explanation:

a = 25

a20 = a+19d

= 25+19 d = 500

= 19d = 475

= d = 475/19

= d = 25


Jaiprasanth12: Please mark it as brainliest
Answered by TooFree
1

Answer:

25


Step-by-step explanation:

First term = a1 = 25

20th term = 500


Find n term:

an = a1 + (n - 1)d

Given that a1 = 25

an = 25 + (n - 1)d


Find d:

Given that the 20th term is 500

500 = 25 + (20 - 1)d

500 = 25 + 19d

19d = 475

d = 475 ÷ 19

d = 25


Answer: The common difference is 25



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