If '+' means '-' '-' means 'x' , 'x' means '÷' and

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If '+' means '-' '-' means 'x' , 'x' means '÷' and '÷' means '+' Which combination will give you the value of '0' in 42*4*12*20*9?

1. ÷ + - x
2. ÷ - + x
3. - ÷ x +
4. x - ÷ +

Correct Option: C

The given expression is 42*4*12*9 = 0
From option (c), 42, - 4 ÷ 12 x 20 + 9
By coding, the equation becomes,
LHS ⇒ 42 x 4 + 12 ÷ 20 - 9
By applying the operations in sequence, from left to right,
168 + 12 ÷ 20 - 9
180 ÷ 20 - 9
9 - 9 = 0 = R.H.S.