117 + 9 = 117 + 10 - 1 = 127 - 1 Is the above expression is correct? Options: A . &nbspTrue B . &nbspFalse

117 + 9 = 117 + 10 - 1 = 127 - 1 Is the above expression is correct?

Question

117 + 9 = 117 + 10 - 1 = 127 - 1 Is the above expression is correct?

Options:

A . True

B . False

Answer: Option A

Yes it is correct. 9 can be written as 10 - 1 So 117 + 9 = 117 + 10 - 1 Again (117+ 10) = 127, so (117+ 10) - 1= 127 - 1

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