1.

122-42/92-32 = ?(a) 1 7/9(b) 1 8/9(c) 1 1/3(d) 9

Answer» (a) ? = (12+ 4) (12 -4)/ (9 +3)(9 -3)= 16 x 8/12 x  6 = 16/9= 1 7/9


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