Madhyamik Exam - 2018 MATHEMATICS

(i) বার্ষিক 10% সরল সুদের হারে a টাকার b মাসের সুদ— (a) [tex] {{ab} \over {100}}[/tex] টাকা (b) [tex] {{ab} \over {120}}[/tex] টাকা (c) [tex] {{ab} \over {1200}}[/tex] টাকা (d) [tex] {{ab} \over {10}}[/tex] টাকা (ii) যদি [tex] x \propto y [/tex] হয়, তাহলে— (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]

(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]