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Find the sum of given Arithmetic Progression `4+8+ 12+....+ 64`A. 464B. 540C. 544D. 646

Answer» Correct Answer - 3
Here a=4, d =4, n=16 So, = `(n)/(2)` [First term + last term]= `(16)/(2)[4+ 64]= 8(68)= 544`


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