allery$16$ ଏବଂ $25$ ମଧ୍ୟରେ ମଧ୍ୟମାନୁପାତୀ ନିର୍ଣ୍ଣୟ କରନ୍ତୁ।
A$18$
B$20$
C$22$
D$24$
Answer & Solution
Correct answer: B. $20$
ମଧ୍ୟମାନୁପାତୀ $= \sqrt{a \times b} = \sqrt{16 \times 25} = \sqrt{400} = 20$.
ବିକଳ୍ପ A (18) ହେଉଛି ସମାନ୍ତର ମାଧ୍ୟମ $(16+25)/2 \approx 20.5$ କୁ ପୂର୍ଣ୍ଣସଂଖ୍ୟାକୁ କମାଇ ଲେଖାଯାଇଛି — ପାଖାପାଖି, କିନ୍ତୁ ପ୍ରଶ୍ନରେ ପଚରାଯାଇଥିବା ଗୁଣୋତ୍ତର ମାଧ୍ୟମ ନୁହେଁ।
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Related questions
₹$5400$ is divided among A, B and C in the ratio $3 : 5 : 7$. How much does B receive?Find the compounded ratio of $(2 : 3)$, $(5 : 7)$ and $(4 : 9)$.If $\dfrac{a}{b} = \dfrac{3}{5}$, find the value of $\dfrac{a+b}{a-b}$.Find the fourth proportional to $4$, $9$ and $12$.Which of the following is equivalent to the ratio $4 : 5$?