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0 votes
5.5k views
in Arithmetic Progression by (31.3k points)
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If the first term of an A.P. is 2 and common difference is 4, then the sum of its 40 terms is

 A. 3200 

B. 1600 

C. 200 

D. 2800

1 Answer

+1 vote
by (30.9k points)
selected by
 
Best answer

Here a1= 2 

D = common difference = 4

= 20 (4 + 156) 

= 3,200

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