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Question

The sum of the series 132+5478+... is

A
29
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B
49
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C
49
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D
29
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Solution

The correct option is A 29
S=132+5478+...
S2=1234+58
S(1+12)=122+2428....
S(32)=11+1214....
S(32)=12(112....)
S(32)=12(11+1/2)
S(32)=12.23
S(32)=13
S=29

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