Question

the first term is 2 and the last term is 31 find sum of all its numbers if n is 10​

Answer 1

Answer:

well it's an interesting question

Answer 2

Answer:

first term of an Arithmetic Progression (AP) is 4. And, the last term is 31.

☯ Let the first term be a.

And, Last term be l.

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★Accordingtothequestion:

The sum of all the terms is 420.