a man purchased some,eggs at 3 for rs 5 and,sold them at 5 for rs 12 thus he gained rs 143 in all how many egg did he purchase
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3egg =5 rupees
1egg =5/3rupees
5eggs =12rupees
1egg=12/5rupees
gain=12/5x -5/3 x
by taking l c m
143=36/15x-25/15x
143=11/15x
x=143*15/11
x=13*15
x=195
1egg =5/3rupees
5eggs =12rupees
1egg=12/5rupees
gain=12/5x -5/3 x
by taking l c m
143=36/15x-25/15x
143=11/15x
x=143*15/11
x=13*15
x=195
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