Interested to Buy Any Domain ? << Click Here >> for more details...
VOLUNTEER TRAINING FOR DISADVANTAGED IN MATHS – QUESTION 15 : A motel cleaner has 8 master keys at home to open all the rooms in a large motel. Each room can be opened by just 1 of these keys. If 40 % of the rooms are left unlocked, what is the probability that the cleaner can get into a specific room if he selects 3 keys at random before leaving home to go to work? (A) 5 / 8, (B) 5 / 16, (C) 31 / 40, (D) 3 / 20, (E) 19 / 40.
- 1 Answers
- 1891 Views
- I also Faced
- E-Mail Answers
Answer Posted / kangchuentat
VOLUNTEER TRAINING FOR DISADVANTAGED IN MATHS – ANSWER 15 : A. Probability = 4 / 10 + (6 / 10) (3 / 8) = 5 / 8
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
if x,y,z are natural numbers, and if 2x=y and y=3z, which of the following numbers could be x+y+z
Explain the paradigm shift in the nature of Mathematics from empirical to rational.
According to set theory, sets that do not contain themselves are typically referred to as?
What form of geometry is one in which the parallel postulate of euclidean geometry does not hold:
In a normal distribution, approximately what percentage of the cases, to the nearest whole number, falls within 4 standard deviations of the mean.
Write the condition for critical point (a,b) to become a function f(x,y) maximum.
In what ways do you use math in your daily life?
What is -2likelihood function?
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?
Explain the theory of Multiple intelligence with reference to learning of Mathematics.
If you start with 1 bacterium and double the number every 15 minutes, how many bacteria will you have at the end of 3 hours and 45 minutes?
if card punch operator can process 80 cards in half an hour how many cards can this process in 7hr 30min?
Replicon company exam papers
Define neighbourhood of a point in a plane
the value of x which makes xi+2j+3k and -i+5j+k perpendicular is
