Math, asked by vishalvishal36363, 18 hours ago

21.42.63.48 ka kon sa padh 210hai

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Answers

Answered by pavan1366

0

Answer:

10

Step-by-step explanation:

a=21

d=42-21=21

21, 21+21, 21+21+21, 21+21+21+21, 21+21+21+21+21...

21,42,63,84,105,126,147,168,189,210

no of terms = 10

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