In the following some of the combinations of operations and an operand A: means ‘÷3’ B: means ‘x3’ C: means ‘-3’ D: means ‘+3’ E: means ‘÷2’ F: means ‘x2’ G: means ‘-2’ H: means ‘+2’42x21-12 ?=880<br/> ?->(Show Answer!)

1. In the following some of the combinations of operations and an operand A: means ‘÷3’ B: means ‘x3’ C: means ‘-3’ D: means ‘+3’ E: means ‘÷2’ F: means ‘x2’ G: means ‘-2’ H: means ‘+2’42x21-12 ?=880

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By: anil on 05 May 2019 01.34 am

Expression : 42x21-12 ?=880 L.H.S. = 42x21-12 ? = 882 - 12 ? (A) : A = $$882 - 12 div 3 = 882-4=878$$ (B) : F = $$882-12 imes 2 = 882-24=858$$ (C) : G = $$882-12 - 2 = 882-14=868$$
(D) : D = $$882-12 +3 = 882-9=873$$
=> Ans - (E)

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