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5 tech company's stocks

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talaangoshtari Master | Next Rank: 500 Posts
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5 tech company's stocks

Post Fri Jun 12, 2015 2:24 am
I have difficulty solving this problem
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Post Fri Jun 12, 2015 6:57 am
In number 8, we're told that Ann held 90 shares of the company that changed by the smallest amount. (I'll assume that we're talking about the smallest range from min - max.) Looking at our ranges, we can see that Micro Tech is the only stock that changes by less than $10.

Friendbook: 30 - 60
Micro Tech: 62 - 70
LinkUp 10 -20
SearchWiz: 20 - 50
PalFind: 39 - 59

If we have 90 shares of Micro Tech, and sell at the max value, we'll have 70*90 = $6300 to spend. If we used that to buy the cheapest stock at its minimum value, we'll be buying LinkUp at $10/share. 6300/10 = 630 shares of Linkup.

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Post Fri Jun 12, 2015 6:52 am
Sure thing. (But note: the wording of this question is a bit problematic. We're given the range of the prices of the stocks, but not the starting or ending values. Take, Friendbook, for example. We know the range of the prices was 30-60. So if we started at 30 and ended at 60, we'd have a 100% increase for the year. But if we started at 60 and ended at 30, there'd be a 50% decrease. And how do we that we didn't start at 45, drop to 30 at some point, rise to 60 at another point, and then end at 45 again? In this case, there'd be no net start-end change. So, for argument's sake, I'm going to pretend that the question is asking about the largest percent increase from the min to the max values.)


#7: First, let's summarize the price ranges for all the stocks:

Friendbook: 30 - 60
Micro Tech: 62 - 70
LinkUp 10 -20
SearchWiz: 20 - 50
PalFind: 39 - 59

The largest percent increase was SearchWiz, [(50 - 20)/20] * 100 = 150%.

We want to know what percent the min price was of the max price, so 20/50 = 40%.

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talaangoshtari Master | Next Rank: 500 Posts
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Post Fri Jun 12, 2015 6:36 am
Would you please solve question 7 and 8?

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Post Fri Jun 12, 2015 6:18 am
We can see in the graph that Palfind ranged in price from about $39 to about $59. If he bought at the lowest price and sold at the highest, he made a profit of 59 - 39 = $20 on each share. If he bought and sold 800 shares, his total profit would be 20*800 = $16,000.

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