Question 38
In a certain code language, 'x' represents '+', '÷' represents 'x', '-' represents '÷' and '+' represents '-'. Find out the answer to the following question.
5 + 10 x 21 ÷ 5 - 15 = ?
Solution
Expression : 5 + 10 x 21 ÷ 5 - 15 = ?
$$\equiv5-10+21\times5\div15$$
= $$-5+\frac{105}{15}$$
= $$-5+7=2$$
=> Ans - (B)
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