Question 39
The following equation is incorrect. Which two signs should be interchanged to correct the equation?
1 ÷ 14 x 30 + 20 -10 = 12
Solution
Expression : 1 ÷ 14 x 30 + 20 -10 = 12
(A) : ÷ and +
$$\equiv1+14\times30\div20-10=12$$
L.H.S. = $$1+(\frac{14\times30}{20})-10$$
= $$1+21-10=12=$$ R.H.S.
=> Ans - (A)
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