RST OUT OF CONTROL COG Flashcards
Leonardo was given a new phone on his last birthday. His parents had told him it was for emergencies only, but they are sure he has used it mainly to play Fruit Ninja. The plan they got costs $49.98 per month plus 10 cents per text message. If the bill for the first year Leonardo had his new phone was $612.96, how many text messages did Leonardo use per month, on average?
A. 0.11
B. 11
C. 0.132
D. 13.2
?
A bag contains 26 red, 52 black and 39 yellow marbles. Leonardo takes out 1 marble. What is the probability that he will take out a yellow marble?A. 2/9
B. 1/2
C. 1/3
D. 1/39
?
Alison is now three times as old as Jeremy, but 5 years ago, she was 5 times as old as he was. How old is Alison now?
30
20
25
36
30
30 / 3 = 10
25 / 5 = 5
Leonardo keeps ostriches and sheep: in total 80 animals. Together all the animals have 220 legs. How many ostriches does he have?
A. 30
B. 40
C. 50
D. 60
C. 50
50 X 2 = 100
30 X 4 = 120
= 220
Judy plans to visit the National Gallery once each month in 2001 except in July and August when she plans to go three times each. A single admission costs $3.50, a pass valid for unlimited visits in any 3-month period can be purchased for $18, and an annual pass costs $60. What is the least amount, in dollars, that Judy can spend for her intended number of visits?
A. 72 B. 60 C. 56 D. 49.5 E. 48
D. 49.5
18.00 for 3 months
3.50 for 9 months
9 X 3.50 =31.50
31.50 + 18.00 = 49.5
David’s networking group has 30 men and 25 women. What is the ratio of women to men? A. 30 to 25 B. 6 to 5 C. 5 to 6 D. 25 to 55
= B 6 to 5
Multiply or divide by a common number.
Divide both by 5
30/5 = 6 and 25/5 = 5
Kevin has a tattoo on his arm. If 45% of the skin on his arm is covered by the tattoo, what is the ratio of covered skin to uncovered skin on Kevin’s arm?
A. 55 to 45
B. 11 to 9
C. 9 to 11
D. 45 to 100
C 9 to 11 Multiply or divide by a common number. Divide both by 6 45/5=9 55/5=11 9 to 11
Two thousand six hundred forty feet is what fraction of a mile? A. 1/3 B. 1/2 C. 5/8 D. 6/7
B 1/2
1 mile = 5280 ft.
Leonardo will be publishing his first book in 17 days. Today is Tuesday the 23rd of February. On which day will Leonardo be publishing his book? A. Thursday B. Friday C. Saturday D. Not enough info
B Friday
2 weeks would be another Tuesday so add 3 days would be Friday.
Approximately how many tons are in 1000 kilograms? A. 1.1 B. 1.2 C. 2.2 D. 2000
A 1.1
1,000 Kg = 1 ton
Jen, Ken, and Len divided a cash prize. Jen took 50% of the money and spent 3/5 of what she took. Ken took 40% of the money and spent ¾ of what he took.
Which of the following choices is greater?
The amount that Jen spent
The amount that Ken spent
A. 1 is greater
B. 2 is greater
C. 1 & 2 are equal
D. Cannot be determined from information given
A 1 is greater
Multiply how much Jen spent by 5
3x5 = 15
Multiply how much Ken spent by 4
? I DON’T KNOW
6 degrees Celsius is what temperature in degrees Fahrenheit? A. 40 B. 32 C. 6 D. 42.8
D 42.8
6 X 2 = 12 + 30 = 42
A rectangular box with a square base has volume 180. If one side of the base has length 6, what is the height of the box?
A. 5
B. 6
C. 30
D. Not enough info
C. 30
Jenny has a jar for collecting spare change. So far she only has pennies, nickels, and dimes, but she dreams of owning a quarter one day. She has twice as many nickels as pennies, four more dimes than nickels, and nineteen coins total. How many nickels does she have?
A. 3
B. 6
C. 10
D. 1.33
B 6
