Math, asked by manishkarkera927, 10 months ago

9. For an A.P. t1=25 and t20 = 405. Find the common difference

Answers

Answered by bhaveshchaudhary302

12

Step-by-step explanation:

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Answered by Charvi171

3

Answer:

Common difference=20

Step-by-step explanation:

t1=25

t20=405

t+19d=405

25+19d=405

19d=380

d=20

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