QUESTIONS AND ACCURATE ANSWERS
EXPERT REVIEW RESOURCE
⩥ In the stock market, four different stocks have an average price of
$100 per stock. The price of a Drone stock is $70. What is the average
price of the three other stocks (not including the Drone stock)?
A. 107
B. 110
C. 112
D. 117 E.
Cannot say.
Answer: The correct answer is (B). In order to calculate an average, we
have to know the sum of the individual values, and the number of
individuals. We know that there are four different stocks, so the number
of individuals is four (Number of individuals). Now, find the sum of the
prices of all the stocks (Sum of the individuals' value). We can calculate
the sum of the group's value with the average of the values:
Sum of all the values
------------------------ = Average
Number of Values
,Let's insert the figures that we know into the formula.
Sum of all values
---------------------- = 100 Dollars
4
Sum of all values = 400 Dollars
The average of the 4 stock prices is $100, and therefore the sum of the
stock prices is $400.
If the value of the Drone stock is $70, we can conclude that the sum of
the remaining three stock prices is $330. If the value of three of them is
$330, the average price is $110.
Quick tip: If an average is provided followed by the number of values,
the sum of the values can be calculated. The sum is calculated as
follows:
Number of values X Average=Sum of the values.
⩥ The volume of a rectangle prism is 100 cubic inches. Which of the
alternatives is its greatest possible length?
A. 100
B. 10
C. 20
,D. 60
E. 50.
Answer: The correct answer is (A). In order to answer the question
correctly, we need to understand it. In order to find out the greatest
possible size, we have to think in extremes. The volume formula of a
rectangular prism is: Length * Width * Depth = Volume.
If the volume is already set at 100 cubic inches, we can obtain from the
formula the greatest value for length if we set the lowest values for
width and depth. Theoretically, both the width and depth may each be 1
inch, and the length 100 inches; thus the correct answer is A.
⩥ Which THREE of the following words have similar meanings?
A. Rapidly
B. Exceedingly
C. Hastily
D. Eventually
E. Swiftly.
Answer: The correct answers are: (A) rapidly, (C) hastily, and (E)
swiftly. All three words are adverbs that mean "quickly." "Exceedingly"
does not belong because it means "extremely." "Eventually" is not
related to speed but to chronological order; therefore, it does not belong.
⩥ In the following set of words, which word is different from the others?
A. Inflation
, B. Interest
C. Debt
D. Budget
E. Drought.
Answer: The correct answer is (E). All of the other answers are closely
related to money, while drought is related to the weather/climate. This
question is confusing because a drought can bring on financial
difficulties to a country, causing inflation and debt, but a drought is
simply a period of dry weather.
⩥ Which alternative includes all the states that border Oklahoma?
A. Texas, New Mexico, Arkansas, Missouri, Kansas, Colorado
B. Texas, Arkansas, Missouri, Kansas, Louisiana, Colorado
C. Texas, New Mexico, Mississippi, Missouri, Kansas, Colorado
D. Texas, New Mexico, Kansas
E. Texas, Arkansas, Missouri, Kansas, Colorado.
Answer: The correct answer is A.
Six states border Oklahoma:
In the north - Kansas and Colorado
In the south - Texas
In the east - Arkansas and Missouri
In the west - New Mexico