A store sells an item for tk.1.50 each,or 3 item amounted to tk. 3.50. if 202 items were sold and revenue amounted to tk.279.00, how many of these items were sold one at a time?
Created: 6 years ago |
best des
let, number of item each price 1.50 is=x
and number of item together 3 item price 3.50 = y
so, x+3y = 202…………………(1)
and
1.50x + 3.50y = 279
or, 1.50X + 3.50(202-x)/3 = 279
or, 4.50x + 707 - 3.50x = 837
or, x = 130
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