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থিম নির্বাচন

আপনার পছন্দের থিম বেছে নিন।

Anwar has thrice as much marbles as Babu has. If Anwar gives 6 marbles to Babu then the ratio of marbles possessed by Anwar and Babu becomes 5:3. How many marbles does Anwar have?

A. 24
B. 28
C. 36
D. 48
E. none of these
Explanation: ধরে নিই, বাবু'র marble = \(x\)। ∴ আনোয়ার marble = \(3x\)। এখন , \(\frac{3x-6}{x+6}=\frac{5}{3} \Rightarrow 9x-18=5x+30 \Rightarrow 4x=48 \Rightarrow x=12 \Rightarrow 3x=36\).