Math, asked by ak6587278, 10 months ago

. If 1 +4+ 7 + ...... is in A.P then the sum from tenth to twentieth term is *

1 point

a) 400

b) 421

c) 473

d) 481

Answers

Answered by sakshi1322

1

Answer:

option c is correct

Step-by-step explanation:

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