3. 03 MC
1 answer:
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ANSWER
C. Both equations will find the correct solution.
EXPLANATION
It was given in the question that, Asha and Jamal started with 45 plants.
We were told that, they sold some plants and now they have 21 plants left.
Let
represent the number of plants sold.
Then when we add the number of plants sold and the number left, we should get 45.
This implies that,
This is Jamal's equation.
On the other hand, if we subtract the number of plants sold from the total number of plants, we should get 21. Thus,
This is Asha's equation.
The two equations are therefore equivalent.
They will give the same solution.
The correct answer is C.
C. Both equations will find the correct solution.
EXPLANATION
It was given in the question that, Asha and Jamal started with 45 plants.
We were told that, they sold some plants and now they have 21 plants left.
Let
represent the number of plants sold.
Then when we add the number of plants sold and the number left, we should get 45.
This implies that,
This is Jamal's equation.
On the other hand, if we subtract the number of plants sold from the total number of plants, we should get 21. Thus,
This is Asha's equation.
The two equations are therefore equivalent.
They will give the same solution.
The correct answer is C.
The probability that a randomly selected man dies of cancer during the course of the year = 
The probability that a randomly selected man does not die of cancer during the course of the year =
The probability that atleast one man of this age dies of cancer is the complement of the probability that no man dies of cancer. In equation form we can write:
Probability that atleast one man of this age dies of cancer = 1 - No man at this age dies of cancer
The probability that no man dies of cancer out of 1000 selected men =
, rounded of to 5 decimal places
Thus the probability that atleast one man at this age dies of cancer = 1 - 0.04956 = 0.95044
The probability that a randomly selected man does not die of cancer during the course of the year =
The probability that atleast one man of this age dies of cancer is the complement of the probability that no man dies of cancer. In equation form we can write:
Probability that atleast one man of this age dies of cancer = 1 - No man at this age dies of cancer
The probability that no man dies of cancer out of 1000 selected men =
Thus the probability that atleast one man at this age dies of cancer = 1 - 0.04956 = 0.95044