On 3 sales John has received commissions of
$240,
$80, and $110, and he has 1 additional sale
pending.
If John is to receive an average
(arithmetic mean)
commission of exactly $150 on the 4 sales,
then the
4th commission
must be
B.$170
C.$175
D.$182
E.$185
B.$170
C.$175
D.$182
E.$185
A company accountant estimates that
airfares next
year for business trips of a thousand miles
or less will
increase by 20 percent and airfares for all
other
business trips will increase by 10 percent.
This year
total airfares for business trips of a
thousand miles or
less were $9,900 and airfares for all other
business
trips were $13,000. According to the
accountant’s
estimate, if the same business trips will
be made next
year as this year, how much will be spent
for airfares
next year?
B. $26,180
C. $26,330
D. $26,490
E. $29,770
B. $26,180
C. $26,330
D. $26,490
E. $29,770
During a two week period, the price of an
ounce of
silver increased by 25 percent by the end
of the first
week and then decreased by 20 percent of
this new
price by the end of the second week. If the
price of
silver was x dollars per ounce at the beginning of the
two-week period, what was the price, in
dollars per
ounce, by the end of the period?
B .0.95x
C. x
D. 1.05x
E. 1.25x
B .0.95x
C. x
D. 1.05x
E. 1.25x
In a certain pond, 50 fish were caught,
tagged, and
returned to the pond. A few days later, 50
fish were
caught again, of which 2 were found to have
been
tagged. If the percent of tagged fish in
the second
catch approximates the percent of tagged
fish in the
pond, what is the approximate number of
fish in the
pond?
B. 625
C. 1250
D. 2500
E. 10000
B. 625
C. 1250
D. 2500
E. 10000
A hiker walked for two days. On the second
day the
hiker walked 2 hours longer and at an
average speed
1 mile per hour faster than he walked on
the first day.
If during the two days he walked a total of
64 miles
and spent a total of 18 hours walking, what
was his
average speed on the first day?
B. 3mph
C. 4mph
D. 5mph
E. 6mph
B. 3mph
C. 4mph
D. 5mph
E. 6mph