Question 48

If ‘+’ stands for multiplication, ‘-’ stands for division, ‘x’ stands for addition, ‘÷’ stands for subtraction, then which one of the following equations is correct ?

Solution

(A) : 12 x 5 + 4 - 5 ÷ 4 = 20

L.H.S. = $$12+5\times4\div5-4$$

= $$12+4-4=12\neq$$ R.H.S.

(B) : 12 ÷ 5 + 4 - 5 x 4 = 18

L.H.S. = $$12-5\times4\div5+4$$

= $$12-4+4=12\neq$$ R.H.S.

(C) : 12 + 5 - 4 x 5 ÷ 4 = 16

L.H.S. = $$12\times5\div4+5-4$$

= $$15+1=16=$$ R.H.S.

=> Ans - (C)

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