What is the high and low prices?

Question

the sum of high and low prices of a share stock for johns, ic., in 2010 is $83.50 and the difference of these two prices in 2010 is $21.88. find high and lowprice

Answer 1

Let H be the high price and let L be the low price.

 

So H + L = 83.50

 

And H - L = 21.88

 

Add the two equations together:

 

2H = 83.50 + 21.88 = 105.38

H = 52.69

 

Substitute that value for H into either equation and solve for L:

H + L = 83.50

52.69 + L = 83.50

L = 30.81

 

So the high price was $52.69 and the low price was $30.81