The fourth term of an arithmetic progression is 8. What is the sum of first 7 te

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The fourth term of an arithmetic progression is 8. What is the sum of first 7 terms of the arithmetic progression?(CAT 1994)

Options:

A . 7

B . 64

C . 56

D . Cannot be determined

Answer: Option C
:
C
Option (c) Fourth term = 8 → a + 3d = 8sum of seven terms=

The Fourth Term Of An Arithmetic Progression Is 8. What Is T...

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