Question 39

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

12÷4-15x10+2=8

Solution

Expression : 12÷4-15x10+2=8

(A) : + and x

$$\equiv12\div4-15+10\times2=8$$

L.H.S. = $$(\frac{12}{4})-15+(10\times2)$$

= $$3-15+20=8=$$ R.H.S.

=> Ans - (A)

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