Question 39
The following equation is incorrect. Which two signs should be interchanged to correct the equation?
14 - 6 x 30 ÷ 10 + 4 = 28
Solution
Expression : 14 - 6 x 30 ÷ 10 + 4 = 28
(A) : - and +
$$\equiv14+6\times30\div10-4=28$$
L.H.S. = $$14+(6\times\frac{30}{10})-4$$
= $$14+(6\times3)-4=28=$$ R.H.S.
=> Ans - (A)
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