amcmullen719 amcmullen719

27-03-2020
Mathematics

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An amphitheatre has 15 seats in the first row, 19 in the second, 23 in the third, and so on, for 34 rows. How many seats are in the amphitheatre?

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yusufbalqees4 yusufbalqees4

27-03-2020

Total seats=15+19+23+27+31+35+39+43+47+51+55+59+63+67+71+75+79+83+87+91+95+99+103+107+111+115+119+123+127+131+135+139+143+147=2754 seats

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