alleryA আৰু B ৰ বয়সৰ অনুপাত 5 : 3। 9 বছৰ পিছত এই অনুপাত 3 : 2 হয়। A ৰ বৰ্তমান বয়স হ'ল
A30
B27
C36
D45
Answer & Solution
Correct answer: D. 45
(5x + 9)/(3x + 9) = 3/2 সমাধান কৰিলে পোৱা যায় x = 9, গতিকে A ৰ বয়স হ'ল 5 x 9 = 45।
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