A boy was having x marbles. He doubled it by purchasing more marbles. His friend gave
him 4 marbles. He divided all the marbles among 7 boys. Each boy got 2 marbles. How
many marbles did he have at first?
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A boy was having x marbles. He doubled it by purchasing more marbles. His friend gave
him 4 marbles. He divided all the marbles among 7 boys. Each boy got 2 marbles. How
many marbles did he have at first?
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Marbles at first = x
after purchasing more marbles, no of marbles= 2x
Marbles after friend gave 4= 2x+4
After dividing all among 7 boys, each got 2= (2x+4)/7=2
after solving you get,
x=5
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