Odisha Board - Class 9

Secondary Math question bank (Mathematics (ମାଧ୍ୟମିକ ବୀଜଗଣିତ ଓ ଜ୍ୟାମିତି - ୯))

Practice 500 free Odisha Board - Class 9 Mathematics (ମାଧ୍ୟମିକ ବୀଜଗଣିତ ଓ ଜ୍ୟାମିତି - ୯) - Secondary Math questions with answers and step-by-step solutions.

Q1.

ଜ୍ୟାମିତିରେ ସାଦୃଶ୍ୟ ଓ ଉପପାଦ୍ୟ (BSE Odisha 5 Marks Theorem): 'ବାସ୍ତବ ସଂଖ୍ୟା (Real Numbers)' ରେ ଥେଲ୍‌ସଙ୍କ ଉପପାଦ୍ୟ କ’ଣ କହେ?


(A)
ତ୍ରିଭୁଜର ଗୋଟିଏ ବାହୁ ସହ ସମାନ୍ତର ସରଳରେଖା ଅନ୍ୟ ଦୁଇ ବାହୁକୁ ସମାନୁପାତରେ ବିଭାଜିତ କରେ (ବାସ୍ତବ ସଂଖ୍ୟା (Real Numbers))
(B)
କର୍ଣ୍ଣର ବର୍ଗ ଅନ୍ୟ ଦୁଇ ବାହୁର ସମଷ୍ଟି ସହ ସମାନ
(C)
ସମରୂପ ତ୍ରିଭୁଜ ସର୍ବଦା ସର୍ବସମ
(D)
ଏଥିମଧ୍ୟରୁ କୌଣସିଟି ନୁହେଁ
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Q2.

ପରିସଂଖ୍ୟାନ ଓ ସମ୍ଭାବ୍ୟତା (Statistics & Probability): 'ବାସ୍ତବ ସଂଖ୍ୟା (Real Numbers)' ରେ ମଧ୍ୟମା (Median) କିମ୍ବା ସମ୍ଭାବ୍ୟତା $P(E)$ ର ସୂତ୍ର କ’ଣ?


(A)
$M = l + \left(\frac{\frac{N}{2} - c.f.}{f}\right) \times c$ କିମ୍ବା $P(E) = \frac{n(E)}{n(S)}$ (ବାସ୍ତବ ସଂଖ୍ୟା (Real Numbers))
(B)
$P(E) > 1$
(C)
ମଧ୍ୟମା $= 3\text{{ମାଧ୍ୟମାନ}} - 2\text{{ଗରିଷ୍ଠକ}}$
(D)
ଏଥିମଧ୍ୟରୁ କୌଣସିଟି ନୁହେଁ
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