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The number of marbles in Amin's collection is 80% of the number in Rahim's collection. If Rahim has 80 more marbles than Amin, how many marbles do they have altogether ?

The number of marbles in Amin's collection is 80% of the number in Rahim's collection. If Rahim has 80 more marbles than Amin, how many marbles do they have altogether ? Correct Answer 720

Hints: Rahim এর মার্বেল সংখ্যা = R and Amin = A R = 80 + A ; A = .80(80 + A) A = 64 + .80A .20 A = 64 A = 320 তাহলে, R = 80 + A = 80 + 320 = 400 total = 400 + 320 = 720

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