Quiz about Items

Question 1

Which of the following numbers is the greatest?

Accepted Answer

$$1.4 imes10^5$$

Answer

$$3.0 imes10^4$$

Answer

$$2.3 imes10^3$$

Answer

$$4.3 imes10^2$$

Answer

$$9.7 imes10^1$$

Question 2

Evaluate 111011_two by 11_two

Accepted Answer

$$10110001_2$$

Answer

$$1110010_2$$

Answer

$$1101010_2$$

Answer

$$11110011_2$$

Answer

$$11110111_2$$

Question 3

Simplify 8a+4b-(4a+3b)

Accepted Answer

4a+b

Answer

a+b

Answer

2a+b

Answer

3a+2b

Answer

4b-3a

Question 4

Covert 1011011_two to denary

Accepted Answer

91

Answer

31

Answer

51

Answer

71

Answer

81

Question 5

Find the value of x, if 4(x+1)=6(x-3)

Accepted Answer

11

Answer

2

Answer

3

Answer

5

Answer

7

Question 6

Express 2,734,000 in standard form

Accepted Answer

$$2.734 imes10^6$$

Answer

$$2.734 imes10^3$$

Answer

$$2.734 imes10^4$$

Answer

$$2.734 imes10^5$$

Answer

$$2.734 imes10^7$$

Question 7

Expand (2x+1)(x-2)

Accepted Answer

$$2x^2-3x-2$$

Answer

$$2x^2-3x+2$$

Answer

$$2x^2+3x-2$$

Answer

$$2x^2+3x-2$$

Answer

$$2x^2-5x-2$$

Question 8

The scores of seven students in a test are as follows: 25,30,19,19,18,17,16. What is the modal score?

Accepted Answer

19

Answer

30

Answer

25

Answer

18

Answer

14

Question 9

Solve the equation: 12/(x-3) =3

Accepted Answer

7

Answer

-3

Answer

-6

Answer

6

Answer

8

Question 10

If the mean of x, 7, 12, 13 and 15 is 10.4. Find the value of x

Accepted Answer

5

Answer

4

Answer

6

Answer

7

Answer

8

Question 11

Given that (x-y)-(x+y)=4 find the value of y

Accepted Answer

-2

Answer

-1

Answer

0

Answer

1

Answer

2

Question 12

The weight of 7 students in a class are as follows 35kg, 42kg, 38kg, 28kg, 37kg, 47kg, 30kg. Find the range of their weight in kg.

Accepted Answer

19

Answer

9

Answer

12

Answer

14

Answer

17

Question 13

Simplify 3/100 + 33/100 correct to 1 decimal place

Accepted Answer

0.4

Answer

0.1

Answer

0.2

Answer

0.3

Answer

0.7

Question 14

Compute the product of the median and mode of the following sets of data: 6,3,9,5,3

Accepted Answer

26

Answer

8

Answer

15

Answer

19

Answer

21

Question 15

A factory employs 30 workers. 12 of them earn N1,500.00 each per day, 9 earn N1200.00 each per day while each of the rest earn N1000.00 per day. What is the average daily wage?

Accepted Answer

N1260.00

Answer

N1200.00

Answer

N1440.00

Answer

N1488.00

Answer

N1492.00

Question 16

Express 0.000040089 in standard form

Accepted Answer

$$4.0089 imes10^6$$

Answer

$$4.0089 imes10^{\left(-5 ight)}$$

Answer

$$4.0089 imes10^4$$

Answer

$$4.0089 imes10^{\left(-4 ight)}$$

Answer

$$4.0089 imes10^5$$

Question 17

$$Subtract\ 10101_{2\ }from\ 11110_2$$

Accepted Answer

$$1001_2$$

Answer

$$1000_2$$

Answer

$$1111_2$$

Answer

$$1100_2$$

Answer

$$1010_2$$

Question 18

Simplify 4(a+1)+5(a+2)

Accepted Answer

9a+14

Answer

5a+10

Answer

9+14a

Answer

9a-14

Answer

10a+14

Question 19

$$Express\ 2211_4\ as\ denary\ number$$

Accepted Answer

165

Answer

45

Answer

48

Answer

160

Answer

168

Question 20

Find the missing number in $$1001011_2-*****_2=110000_2$$

Accepted Answer

$$11011_2$$

Answer

$$11001_2$$

Answer

$$10101_2$$

Answer

$$11100_2$$

Answer

$$11111_2$$

Question 21

Use the information to answer questions 33 and 34

Find the median age of the candidates

Accepted Answer

23

Answer

25

Answer

24

Answer

15

Answer

12

Question 22

Compute the range of the candidates age

Accepted Answer

6

Answer

15

Answer

20

Answer

15

Answer

12

Question 23

The following are the ages of a group of students in a particular school

10 12 15 10 13

14 10 11 12 10

11 14 10 15 13

How many students are of a minimum of 11 years in the group?

Accepted Answer

5

Answer

2

Answer

4

Answer

10

Answer

12

Question 24

Evaluate $$101_2+101_2$$

Accepted Answer

$$1010_2$$

Answer

$$1100_2$$

Answer

$$1110_2$$

Answer

$$1111_2$$

Answer

$$101_2$$

Question 25

Solve for x if 2x+5=9

Accepted Answer

2

Answer

14

Answer

7

Answer

-2

Answer

3

Question 26

The mode of a set of scores is the _______

Accepted Answer

Score with the highest frequency

Answer

Difference between mean and median

Answer

Least score subtracted from the highest score

Answer

Score at the centre when arranged in order of size

Answer

Sum of scores divided by number of scores

Question 27

Simplify by removing the bracket (a-7b)-(8a-b)

Accepted Answer

-7a-6b

Answer

7a+6b

Answer

7a-6b

Answer

-7a+6b

Answer

(7a)-(6b)

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