allery$4$، $9$ اور $12$ کا چوتھا متناسب تلاش کریں۔
A$18$
B$21$
C$24$
D$27$
Answer & Solution
Correct answer: D. $27$
اگر $4 : 9 = 12 : x$، تو پروڈکٹ آف مینز کے لحاظ سے پروڈکٹ آف ایکسٹریمز رول کے برابر ہے، $4x = 9 \times 12 = 108$، تو $x = 27$۔
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