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Question

13+(69)+57(89)(53+(49))=

A
80
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B
70
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C
50
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D
60
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Solution

The correct option is D 60

13+(69)+57(89)(53+(49))

=1369+57+89(5349)

=1369+57+8953+49

First, take all the negative terms and then take all the positive terms and add them,

=(136953)+(57+89+49)

=135+195

=60


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