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?

প্রশ্নঃ 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?