Which two signs should be interchanged to make the given equation correct ?
$$14\times3\div27+54-9=21$$
$$14\times3\div27+54-9=21$$
From the option C,
On interchanging the $$\div$$ and -,
$$14 \times3 - 27 + 54 \div 9=21$$
42 - 27 + 6 = 21
21 = 21
$$\therefore$$ The correct answer is option C.
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