Training & POC

Q. A collection of all four legged animals is

1. a set.
2. not a set.

Q. Anna organizes a marathon as part of a fundraising event for the Seabin Project to clean up oceans. Anna uses a phone tree to inform the poeple about the event. She calls four people. Each of the four people calls up four more people to inform about the event and so on. How many people inform by end of the $5^{th}$ round of calls?

1. 60
2. 62
3. 64
4. 68

Q.

Which of the following is an empty set

1. $\{x:x$ is a real number and $x^2-1=0\}$

2. $\{x:x$ is a real number and $x^2+1=0\}$

3. $\{x:x$ is a real number and $x^2-9=0\}$

4. $\{x:x$ is a real number and $x^2=x+2\}$

Q. According to the Priority Rule, which operation in the following challenge will take place first?

$(6+3)÷8-2+5$

1. 
   6 + 3
2. 
   3/8
3. 
   2 + 5
4. 
   8 - 2

Q. If $B$ is an empty set, then $n\left(B\right)>0.$

1. No
2. Yes

Q. In grade 6 of Burger International School, 10 students like Science, 15 students like Mathematics and 20 students like English. Find the ratio of students liking Mathematics to English to Science.

1. 20:10:15
2. 10:15:20
3. 15:20:10
4. 15:10:20

Q. Omar and Gina went shopping in edmart and bought the following items:

ITEM	BUYER	COST
FOOTBALL	OMAR	$10
NOTEBOOK	GINA	$5
BASEBALL BAT	GINA	$20
VIDEO GAME CONSOLE	OMAR	$200
LAMP	GINA	$50
PEN-SET	OMAR	$3

How much did Omar and Gina pay in total?

1. $\$280$
2. $\$283$
3. $\$285$
4. $\$288$

Q. Represent the following as a ratio:
5 L milk to 10 water bottles

1. 10:5
2. 5:10
3. 20:10

Q. How would you express 1000000 in exponential form?

1. ${10}^5$
2. ${10}^6$
3. ${10}^7$
4. $(5\times 2{)}^6$
5. $(2\times 5{)}^6$
6. $(10\times 1{)}^6$
7. $(1\times {10}^6)$
8. ${10}^{11}$

Q. A collection of all good movies is

1. a set.
2. not a set.