Q.428 : यदि a = +, B = -, Y = ÷ तथा Z = x हो, तो 36Z4Y6B4a30 का मान क्या होगा?

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Q.428 : यदि a = +, B = -, Y = ÷ तथा Z = x हो, तो 36Z4Y6B4a30 का मान क्या होगा?
(a) 60
(b) 50
(c) 70
(d) 90

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Answer :50