Question
Download Solution PDFযদি a এবং b এমন দুটি সংখ্যা হয় যে (a + b) ∶ (a - b) ∶ ab = 14 ∶ 4 ∶ 45, তাহলে (5a + 3b) ∶ (6a - 4.8b) এর মান কত?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
(a + b) : (a - b) : ab = 14 : 4 : 45
অনুসৃত সূত্র:
অনুপাতের ধর্মাবলী
গণনা:
ধরা যাক (a + b) = 14x, (a - b) = 4x, ab = 45x
⇒ 2a = 18x, a = 9x
⇒ 2b = 10x, b = 5x
⇒ ab = 9x × 5x = 45x2
⇒ 45x2 = 45x
⇒ x = 1
⇒ a = 9, b = 5
⇒ (5a + 3b) : (6a - 4.8b) = (5×9 + 3×5) : (6×9 - 4.8×5)
⇒ (45 + 15) : (54 - 24)
⇒ 60 : 30 = 2 : 1
∴ (5a + 3b) : (6a - 4.8b) = 2 : 1
Last updated on May 29, 2025
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