Math, asked by sanketlilke073, 4 months ago

pls answer the questions

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Answered by Dhruv11181

1

( 2a ) = 20 1st Box

2nd Box = d = 5

3rd Box = (30-1)×5 = 145

4th box = 165

5th box = 15 × 165 Hence so the S³⁰

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