Question

How many terms of an AP:24,21,18...must be taken so that their sum is 78???​

Answer 1

Answer:

How many terms of an AP:24,21,18...must be taken so that their sum is 78???

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Answer 2

$ANSWER:-$

terms of an AP

24, 21, 18,....

Here,

a = 24

d=21-24 -3

Also, given Sum = 78