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If a 1 , a 2 , a 3 , ............... a n are in A.P. and a 1 + a 4 + a 7 + ........... + a 16 = 114, then a 1 + a 6 + a 11 + a 16 is equal to :

1. 38
2. 98
3. 76
4. 64

Correct answer: 76

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