If "θ" denotes "added to", "δ" denotes "subtracted from", "β" denotes "divided by" and "α" denotes "multiplied by", then
5 β 1 δ 9 α 7 θ 142 = ?
Expression : 5 β 1 δ 9 α 7 θ 142 = ?
$$\equiv5\div1-9\times7+142$$
= $$(\frac{5}{1})-(9\times7)+142$$
= $$5-63+142=84$$
=> Ans - (C)
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