Problem Solving – RIT 231 – 240
1. Which letter in the word, “probabilities” would you expect a computer to
randomly pick most often?
A.
B.
C.
D.
E.
b
s
i
o
t
2. The elevator in the Empire State Building went up 3 floors, down 5 floors,
up 2 floors, and then down 6 floors. If it ended on the 4th floor, on which
floor did it begin?
A.
B.
C.
D.
E.
13th floor
15th floor
8th floor
10th floor
2nd floor
3. Solve for x.
4x + 1 = 2x – 7
A.
B.
C.
D.
E.
x=4
x = -6
x = -4
x=3
x = -3
4. Which expression correctly represents the formula to solve the following
problem?
Lisa is 6 years older than Mary. The sum of their ages is 38 years. How
old is Mary?
A.
B.
C.
D.
E.
x + y = -38
x – 38 = x + 6
L + M = 38
2x + 6 = 38
x – 6 = 38
5. Interest formula: I = prt
How much interest is earned in two years on $200 in a bank account at an
interest rate of 6%?
A.
B.
C.
D.
E.
$6
$24
$12
$2.40
$8
6. Find the missing number in this pattern: 3, 9, 27, ___, 243
A.
B.
C.
D.
E.
30
36
54
81
124
7. If the distance from Idaho Falls to Salt Lake City measures 25 inches on a
map with a scale of 1 inch = 10 miles, how many miles is it from Idaho
Falls to Salt Lake City?
A.
B.
C.
D.
E.
250 miles
10 miles
25 miles
1,000 miles
500 miles
8. If Jason mows fifteen lawns he will earn enough money to buy a bicycle.
Suppose Jason has mowed twelve lawns. What can you determine?
A.
B.
C.
D.
Jason has enough money for his bike.
Jason has enough money to buy a bike and a helmet.
Jason needs to mow one more lawn in order to buy a bike.
Jason needs to mow three more lawns in order to buy the
bike.
E. Jason needs to mow eight more lawns in order to buy a bike.
9. A $30.00 pair of jeans is discounted 20%. If sales tax is 5%, what will be
the final price of the jeans?
A.
B.
C.
D.
E.
$25.20
$22.80
$24.00
$28.35
$22.80
10. Identify the correct equation for the solution:
X=5
A.
B.
C.
D.
E.
3x + 4 = 19
2y = 4
3 – x = 10
x + 17 = 10
x+7=x–9
11. A store has a sale in which all items are on sale for 20% off. The tax at
the store is 5%. Which expression models the cost (c) for an item with the
original price (p)?
A.
B.
C.
D.
E.
c = [p – (.20)p] [1.05]
c = (.20) (1.05)p
c = [p + (.20)p] [1.05]
c = [p – 20p] (.05)
c = [p – 20p] 5