1.

What is the sum of \(1 \dfrac{1}{2}+ 4\dfrac{1}{6}+ 7 \dfrac{1}{12}+ 10 \dfrac{1}{20}...\) upto 20 terms?

A. 12410/21
B. 12412/21
C. 12433/21
D. 1179/2
Answer» B. 12412/21


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