The maximum number of passengers a bus can hold is 40. Which of the following is correct?
Passengers < 40
Passengers ≤ 40
Passengers > 40
Passengers ≥ 40
Key Concepts
Inequality
Mathematical Analysis
Number
Check the Answer
Answer: Passengers ≤ 40
Forerunner Problem Number 2 (Math is Fun)
Secrets in Inequalities.
Try with Hints
This problem is very easy to solve.We can start with a basic chart
I think now its quite clear from the above chart that what we have to do
If the maximum number of passengers a bus can hold is 40 then the expression will be like Passenger \(\leq 40 \) .So the number of passenger it van hold is either 40 or less than 40. So the second option is the correct option.
Statistics Problem - Australian Mathematics Competition, 2014
Problem No - 21 - Australian Mathematics Competition - 2014
Here is a problem based on Statistics from Australian Mathematics Competition, 2014.
In a competition between four people, Sally scored twice as many points as Brian and 30 points more than Corrie. Donna scored 50 points more than Brian. Which of the following statements is definitely true?
Sally won the competition.
Brian came last in the competition.
Donna won the competition.
Corrie beat Brian.
Sally and Donna together scored more than Brian and Corrie.
Key Concepts
Mathematical Analysis
Statistics
Arithmetic
Check the Answer
Answer: Sally and Donna together scored more than Brian and Corrie.
Australian Mathematics Competition – Upper Primary Division - 2014 - UP 21
Statistics 10th Edition - Robert S. Witte and John S. Witte
Try with Hints
For first hint we can use a table form with some possibilities :
So in the previous hint from the table its clear that the 1st , 2nd and 4th options are not correct.Now if we go with the higher numbers like 90,100 etc then there will be a change with the values.Try to find it out using a table.
I guess you have noticed the differences in values let try to do that......
So can understand from this table that the 3rd option is also not correct .
We are told that Sally scored 30 points more than Corrie and Donna scored 50 points more than Brian, and so together Sally and Donna always scored 80 points more than Corrie and Brian
