Quiz about 1. Number Theory (2018 - 2024)

Question 1

(-3)²+ (-2)² is equal to

Accepted Answer

13

Answer

-13

Answer

-10

Answer

25

Question 2

What percentage of 40 is 8?

Accepted Answer

20%

Answer

5%

Answer

32%

Answer

150%

Question 3

If 235 x 48.7 = 11 444.5, then

23.5x 0.487 =

Accepted Answer

11.4445

Answer

114.445

Answer

1 144.45

Answer

11 444.5

Question 4

Using the distributive property,

49 x 17 + 49 x 3 =

Accepted Answer

49 x 20

Answer

49 + 20

Answer

52 x 66

Answer

52 + 66

Question 5

A test was marked out of 80. A boy scored 60% of the marks on the test. How many marks did he score?

Accepted Answer

48

Answer

20

Answer

60

Answer

75

Question 6

Dan sold 40 concert tickets in 5 days. Each day he sold 3 tickets MORE than the previous day. The number of tickets he sold on the third day is

Accepted Answer

8

Answer

9

Answer

10

Answer

11

Question 7

$$\left(\frac{2}{3}\right)^2$$ is equal to

Accepted Answer

$$\frac{4}{9}$$

Answer

$$\frac{4}{6}$$

Answer

$$\frac{4}{3}$$

Answer

$$\frac{2}{9}$$

Question 8

The number 3.14063 written correct to 3 decimal places is

Accepted Answer

3.141

Answer

3.140

Answer

3.146

Answer

3.150

Question 9

In standard notation, 208.06 is written as

Accepted Answer

2.0806 x 10²

Answer

20.806 x 10¹

Answer

2.0806 x 10^-2

Answer

0.20806 x 10³

Question 10

If $560 is shared in the ratio 2:3:9, then difference between the largest and the smallest shares is

Accepted Answer

280

Answer

80

Answer

240

Answer

360

Question 11

If 60% of a number is 90, what is $$\frac{4}{5}$$ of the number?

Accepted Answer

120

Answer

54

Answer

72

Answer

150

Question 12

The first three common multiples of 3, 4 and 6 are

Accepted Answer

12, 24, 36

Answer

0, 1, 2

Answer

3, 4, 6

Answer

6, 8, 12

Question 13

What is the value of the digit 2 in the number 48.621?

Accepted Answer

$$\frac{2}{100}$$

Answer

$$\frac{2}{10}$$

Answer

2

Answer

200

Question 14

A total of 540 beads are shared in the ratio 4:5. The Larger share of beads is

Accepted Answer

300

Answer

60

Answer

240

Answer

432

Question 15

0.45 written as a common fraction, in its simplest form, is

Accepted Answer

$$\frac{9}{20}$$

Answer

$$\frac{4}{5}$$

Answer

$$\frac{9}{10}$$

Answer

$$\frac{5}{4}$$

Question 16

What number when added to $$1\ \frac{1}{3}$$ gives 2

Accepted Answer

$$\frac{2}{3}$$

Answer

$$\frac{1}{3}$$

Answer

1

Answer

3

Question 17

The next term in the sequence

1, 6, 13, 22, 33, is

Accepted Answer

46

Answer

44

Answer

45

Answer

52

Question 18

A certain amount of money is shared in the ratio 2:3:9. If the difference between the first and second shares is $40, then the amount of money shared is

Accepted Answer

$560

Answer

$280

Answer

$360

Answer

$400

Question 19

Dan sold 40 concert tickets in 5 days. Each day he sold 3 MORE than the previous day. What is the ratio of the number of tickets sold on Day 3 to the number of tickets sold on Day 5?

Accepted Answer

4:7

Answer

1:7

Answer

7:4

Answer

5:11

Question 20

What is the value of the digit 6 in the number 48.621?

Accepted Answer

$$\frac{6}{10}$$

Answer

$$\frac{6}{100}$$

Answer

6

Answer

600

Question 21

What is the LEAST number of apples that can be shared equally among either 6, 10 or 15 children?

Accepted Answer

30

Answer

24

Answer

60

Answer

90

Question 22

A certain amount of money is shared among Jay, Troy and Jordan in the ratio 2:3:9. If Troy received $40 more than Jay, then the amount of money shared is

Accepted Answer

$560

Answer

$280

Answer

$360

Answer

$400

Question 23

If 30% of a number is 45, what is $$\frac{4}{5}$$ of the number?

Accepted Answer

120

Answer

36

Answer

150

Answer

180

Question 24

A certain amount of money is shared among Jay, Troy and Jordan in the ratio 2:3:9. If Troy received $40 more than Jay, then the amount of money shared is

Accepted Answer

$560

Answer

$280

Answer

$360

Answer

$400

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