last month mrs santos bought x kilos of fish for 600 today she paid the same amount but got 3 kilos less due to price increase of 45 per kilo. Find the value of x and the original price of a kilo of fish?
Thank you please help.
Amount purchased last month: x kilos
Since last month, she bought x kilos for 600, she paid , per kilo, then
Since today, she bought x 3 kilos for 600, she paid , per kilo
Since there was a 45 per kilo increase, then we have:
600(x 3) + 45(x)(x - 3) = 600(x) ------- Multiplying by LCD, x(x 3)
------ Factoring out GCF, 45
(x - 8)(x + 5) = 0
x, or original amount purchased = kilos OR x = - 5 (ignore)
Original price of 1 kilo: , or
You can do the check!!
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