2. A man bought antain number of glass venels for $600. He
booke of them. Then he sold the remaining for & lo move
than he had given fou it thereby gaining $50 on the
whole How many glass vessels did he buy and also find
the cost of each glass vessels.
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A man bought a certain no. of toys for Rs.180; he kept one for his own use and sold the rest for Rs.1 each more than he gave for them; besides getting his own toy for nothing he made a profit of Rs. 10. find no. of toys.
Lets the number toys be x and cost price of each toy is y.
so, xy = 180
And after removing one item, and increasing cost price by 1 rupee
Total cost is (x - 1)(y - 1) = 180 + 10 (Here, 10 is profit)
xy - y x-1 = 190
180 - y x = 191
x - y = 11
[since xy = 180, y = 180 / x]
x - 180 / x = 11
x² - 180 = 11x
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