Simplify : 1+21+31+451+21+31+45 – McqOptions

MCQOPTIONS

1.	Simplify : 1+21+31+451+21+31+45
A.	74747474747474747474774474
B.	47474747474747474747447747
C.	75757575757575757575775575
D.	37373737373737373737337737
Answer» B. 47474747474747474747447747

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