21⟩ Farmer John grows corn, tomatoes, potatoes and squash. He has only 2 fields for growing these products and cannot grow more than one product per field. How many planting combinations can be done in one season?
10
Mathematics
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61 Mathematics Questions And Answers
22⟩ A person with lung cancer is given an MRI. Four radiologists examine each MRI independently. If each specialist can detect lung cancer with 80% accuracy, what is the probability that at least one of them will detect cancer in this patient
1. 0.998
2. 0.01
3. 0.25
4. 0.8
Answer: A
23⟩ The converse of this theorem is if the sum of the squares of two sides of a triangle equal the square of the third side then the triangle is a right triangle. What is the name of the theorem?
Pythagorean Theorem
24⟩ What is the total angular distance in degrees over a sphere?
360 Degrees
25⟩ Six factorial equals what number?
720
26⟩ Give the rational numbers in the following set
-8, - 3 , 1/5, 0, π
Answer: -8, 1/5, 0
27⟩ A country adopted a policy requiring all couples to continue having children until they had a girl, after which they must stop having children. How many children will the average family have and what will the sex distribution be?
Two Children - One Boy And One Girl
28⟩ If in a sequence of natural numbers, starting with 2, you begin eliminating every second number after 2, then every third number after 3, then every fourth number after 4, and so on, what type of numbers will be left?
prime numbers
29⟩ Which of the following does NOT yield a periodic non-terminating decimal
1. 5/6
2. 1/27
3. 1/18
4. 7/8
Answer: D
30⟩ Systematic random samp ling is to be used to select 5 addresses from an ordered list containing 500 addresses. A 1- in-100 systematic sample is used to select the 5 addresses. What is the chance that any specific address will be chosen
1. 1/5
2. 1/100
3. 5/100
4. 5
Answer: B
31⟩ The Babylonian number system is base 60, which makes it
1. vigesimal
2. quinary
3. binary
4. sexagesimal
Answer: D
32⟩ Which of the following mathematicians is responsible for the Cartesian plane that is also known as the rectangular coordinate system
1. Pythagoroas
2. Rene Descartes
3. Kirk Godel
4. Fredric Gauss
Answer: B
33⟩ Which of the following is the mathematical term for a radical that expresses an irrational number
1. turk
2. radicand
3. finical
4. surd
Answer: D
34⟩ Continuing up the number sequence of natural numbers, prime numbers become which of the following
1. non-existent at a certain point
2. all even after a certain point
3. less and less frequent
4. more frequent
Answer: C
35⟩ Assuming a year in a dogs life is equivalent to 7 years of a humans life, what is 1 hour of a dogs life approximately equivalent to in a humans life?
1. 3 ½ hours
2. 7 hours
3. 5 hours
4. 4 ½ days
Answer: B
36⟩ The surface of a sphere subtends a solid angle of what amount at its center
1. π
2. 2π
3. 4π
4. ½ π
Answer: C
37⟩ Which of the following properties would you use to compute the chances of rolling either a 7 or an 11 with a pair of dice
1. multiplicative
2. conditional
3. independent
4. additive
Answer: D
38⟩ In a computer tape library there are two racks with 40 tapes per rack.In a given day 30 tapes are in use . What fraction remains in the rack?
5/8
39⟩ In a normal distribution, approximately what percentage of the cases, to the nearest whole number, falls within 4 standard deviations of the mean
1. 68%
2. 100%
3. 99%
4. 75%
Answer: B
40⟩ When a quadratic function is plotted on a typical graph, it assumes what shape?
Parabola
