Question 39

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

14 ÷ 10 x 20 - 40 + 34 = 1

Solution

Expression : 14 ÷ 10 x 20 - 40 + 34 = 1

(A) : x and -

$$\equiv14\div10-20\times40+34=1$$

L.H.S. = $$1.4-800+34=-764.6\neq$$ R.H.S.

(B) : ÷ and x

$$\equiv14\times10\div20-40+34=1$$

L.H.S. = $$7-6=1=$$ R.H.S.

=> Ans - (B)

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The following equation is incorrect. Which two signs should be interchanged to correct the equation?14 ÷ 10 x 20 - 40 + 34 = 1