The following equation is incorrect. Which two signs should be interchanged to correct the equation?
15 x 18 - 6 ÷ 20 + 4 = 29
Expression : 15 x 18 - 6 ÷ 20 + 4 = 29
(A) : + and x
$$\equiv15+18-6\div20\times4=29$$
L.H.S. = $$33-\frac{24}{20}=31.8\neq$$ R.H.S.
(B) : ÷ and -
$$\equiv15\times18\div6-20+4=29$$
L.H.S. = $$15\times3-16=29=$$ R.H.S.
=> Ans - (B)
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