যদি a : b = 3 : 5 এবং a : c =5 : 7 হয়, তবে b : c = ?
A. 3 : 7
B. 25 : 21
C. 21 : 25
D. 7 : 3
Bangladesh.Navyমেরিন একাডেমিসাধারণ গণিতবীজগণিতীয় রাশিবীজগণিতীয় রাশি (Topic Practice)Bangladesh.Navy - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
B.
25 : 21
Explanation:
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