Question 64

The following equation is incorrect. Which two signs should be interchanged to correct the equation?
16 x 4 - 10 + 2 ÷ 12 = 18

Solution

Expression : 16 x 4 - 10 + 2 ÷ 12 = 18

(A) : x and ÷

$$\equiv16\div4-10+2\times12=18$$

L.H.S. = $$(\frac{16}{4})-10+(2\times12)$$

= $$4-10+24=18=$$ R.H.S.

=> Ans - (A)

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The following equation is incorrect. Which two signs should be interchanged to correct the equation?16 x 4 - 10 + 2 ÷ 12 = 18