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Mathematics by PolymathAdeoye(m): 2:43am On Jun 29, 2020 |
[color=#990000][/color] waec gce 2001/8b A man bought 250 electric lanterns in the United States of America(USA) for $5,000.He sold them in lagos at #1,920 each.At the time of his journey back to USA,the exchange rate was #96 to the dollar. (i)if by selling the lanterns at #1,920 each,he made a profit of 20%.Calculate the exchange rate at the time he bought the lanterns. (ii)How much in dollar will the sales amount to at the time of his journey back to USA? |
Re: Mathematics by PolymathAdeoye(m): 9:39pm On Jun 29, 2020 |
Re: Mathematics by Mrshape: 1:16am On Jun 30, 2020 |
1920x250=amount Amount =120% Cost price =100% 1920x250=120% Cost price =100% Cross multiply and divide both side by 120 1920x250x100/120=cost price Exchange rate =cost in #/cost in $ =(1920x250x5/6)/(5000) =(96x5/6)=16x5=80 Exchange rate then was 80# to 1dollars (II) the sales will be 400000/96=4166.67 dolars PolymathAdeoye |
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