Question 20

Find out the two signs to be interchanged to make the following equation correct.
$$18+3 \times 27- 9 \div 3 = 78$$

Solution

Expression : $$18+3 \times 27- 9 \div 3 = 78$$

(A) : $$+$$ and $$\times$$

L.H.S. $$\equiv18\times3+27-9\div3$$

= $$54+27-3=78=$$ R.H.S.

=> Ans - (A)

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