Madhyamik Examination (WBBSE) - 2018 MATHEMATICS (Compulsory) English Version
(i) Interest on Rs. a at the simple interest 10% per annum for b months is (a) Rs.[tex] {{ab} \over {100}}[/tex] (b) Rs.[tex] {{ab} \over {120}}[/tex] (c) Rs.[tex] {{ab} \over {1200}}[/tex] (d) Rs.[tex] {{ab} \over {10}}[/tex]
(ii) If [tex] x \propto y [/tex], then—(a) [tex]{x^2} \propto {y^3}[/tex] (b) [tex]{x^3} \propto {y^2}[/tex] (c) [tex] x \propto {y^2}[/tex] (d) [tex]{x^2} \propto {y^2}[/tex]
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