Question

Find the sum of all the multiples of 13 between 750 and 1000.(using Arthematic progression )​

Answer 1

Answer:

the answer is in the attachment

Answer 2

Answer:

first is 754=a

d=13 because 767-754=13

988=last term

an=a+(n-1)square

988=754+(n-1)13

234/13=n-1

n=18+1=19

there are 19 terms

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