Which two signs should be interchanged to make the given equation correct?
$$20 + 5 \times 3 \div 3 - 1 = 14$$
Going by the options,
D) interchanging $$\times\ \ and \ +\ $$
$$20\ \times\ 5\ +\ 3\ \ \ $$ 3 ÷ 3$$\ -\ 1\ne\ 14$$
c) $$\times\ \ and\ \ -\ $$
$$20\ \ +\ 5\ -\ 3\ $$ ÷ $$3\times\ 1\ne\ 14$$
B) ÷ and $$\times\ $$
$$20\ +\ 5$$ ÷ $$3\times\ 3\ -\ 1\ne\ 14$$
A) ÷ and $$\ +\ $$
20 ÷ 5$$\ \times\ 3\ +\ 3\ -\ 1$$ = 14
(Explanation is required)
Hence option A is the correct answer
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