allery$4$, $9$ এবং $12$-এর চতুর্থ সমানুপাতী নির্ণয় করুন।
A$18$
B$21$
C$24$
D$27$
Answer & Solution
Correct answer: D. $27$
যদি $4 : 9 = 12 : x$ হয়, তবে প্রান্তীয় পদদ্বয়ের গুণফল = মধ্যম পদদ্বয়ের গুণফল নিয়ম অনুযায়ী, $4x = 9 \times 12 = 108$, সুতরাং $x = 27$।
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Related questions
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