Andy bought n apples which cost 30 cents each. 4 apples had to be discarded he sold the remaining apples at 40 cents each. Express each of the following
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The Equation goes like this...
cost of 1 apples = 30 cents
no.of apples = n
price of n apples = 30n
4 apple discarded remaining = n - 4
Price of remaining = (n - 4) 40
and if you want to find the no. off apple Andy brought and the price of apple he brought = Price of apple he sold then :
30n = (n - 4) 40
30n = 40n -160
40n - 30n = 160
10n = 160
n = 16
no. of apple Andy brought is 16
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