(3+3-5)x(15-5)x10-99=?

a) 10 b) 9
c) 1 d) 0


Sol: 
= ( 3+3-5) (15-5) 10 -99
= (6-5) (10) 10 -99
= (1) (10) 10 - 99
= 100 - 99
= 1

Hence the correct answer is option C.

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