Quiz about STEAM MATHS QUIZ - SUPPLEMENTARY SESSION

Question 1

Change $$0.\overline{69}$$ to fraction, in its simplest form

Accepted Answer

$$\frac{23}{33}$$

Answer

$$\frac{23}{30}$$

Answer

$$\frac{69}{100}$$

Answer

$$\frac{68}{99}$$

Question 2

Simplify $$2\frac{4}{7}\div1\frac{1}{8}$$

Accepted Answer

$$2\frac{2}{7}$$

Answer

$$1\frac{2}{7}$$

Answer

$$2\frac{1}{7}$$

Answer

$$1\frac{1}{7}$$

Question 3

Expand and simplify $$\left(x-3\right)\left(2x+1\right)-\left(2x-3\right)\left(x+1\right)$$

Accepted Answer

$$-4x$$

Answer

$$4x$$

Answer

$$-4x+6$$

Answer

$$4x+6$$

Question 4

Given that $$y=2x^3-3x-1$$ , find the value of $$y$$ when $$x=-2$$

Accepted Answer

$$-11$$

Answer

9

Answer

$$-9$$

Answer

11

Question 5

Is a circle a polygon?

Accepted Answer

no

Answer

yes

Answer

sometimes

Answer

can't tell

Question 6

The diagram shows a solid cuboid made from wood.

Work out the volume, in $$cm^3$$ , of of the solid.

Accepted Answer

480

Answer

840

Answer

640

Answer

408

Question 7

$$A=2^n imes3 imes5^m$$

Write $$8A$$ as a product of powers of its prime factors

Accepted Answer

$$2^{\left(n+3 ight)} imes3 imes5^m$$

Answer

$$2^{\left(n+4 ight)} imes3 imes5^m$$

Answer

$$2^{\left(n+3 ight)} imes3^0 imes5^{\left(m+1 ight)}$$

Answer

$$2^{\left(n+2 ight)} imes3^2 imes5^m$$

Question 8

In a sale, normal prices are reduced by 20%.

A bag costs 1080 rupees in the sale.

Work out the normal price of the bag.

Accepted Answer

1350 rupees

Answer

900 rupees

Answer

1500 rupees

Answer

1200 rupees

Question 9

Samriddh invests $1000 for 2 years in a savings account.

He gets 2% per year compound interest.

How much money will Samriddh have in his savings account at the end of 2 years?

Accepted Answer

$1040.40

Answer

$1020.00

Answer

$1080.00

Answer

$1100.00

Question 10

The price of a tablet increased by 20% in the at the beginning of 2020 and then decreased by 10% at the beginning of 2021. Calculate the overall percentage change over these two-year period.

Accepted Answer

8% increase

Answer

10% increase

Answer

10% decrease

Answer

8% decrease

Question 11

Find $$n\left(B\cup G\right)$$

Accepted Answer

7

Answer

10

Answer

9

Answer

5

Question 12

By rounding each number to one significant figure, work out a suitable estimate to show that her answer is not sensible.

Accepted Answer

1200

Answer

12000

Answer

1500

Answer

15000

Question 13

Change a speed of x kilometres per hour into a speed in metres per second.

Simplify your answer

Accepted Answer

$$\frac{5x}{18}$$

Answer

$$\frac{18x}{5}$$

Answer

$$\frac{5x}{8}$$

Answer

$$\frac{8x}{5}$$

Question 14

At least one of the following statements is false. Identify them.

Accepted Answer

A rhombus is a special type of square

Accepted Answer

A kite is a special type of rhombus

Answer

All squares are rectangles

Answer

A quadrilateral can be a concave polygon

Answer

The sum of the interior angles of an n-sided polygon is $$180n-360^o$$

Question 15

A sector of angle $$x$$ is a fraction of a circle of radius $$r$$ .

Which of these is the perimeter of the sector.

Accepted Answer

$$P=\frac{x}{360} imes2\pi r+2r$$

Answer

$$P=\frac{x}{360}+2r$$

Answer

$$P=\frac{x}{360}+2\pi r$$

Answer

$$P=\frac{x}{360}+\pi D$$

Question 16

The students in Class A and in Class B take the same examination.

There are 28 students in Class A and 32 students in Class B.

The mean score for all the students in both classes is 72.6.

The mean score for the students in Class A is 75.

Work out the mean score for the students in Class B.

Accepted Answer

70.5

Answer

71.0

Answer

68.2

Answer

73.5

Question 17

The lowest score in Class A is 39.

The range of scores for Class A is 57.

The lowest score in Class B is 33.

The range of scores for Class B is 60.

Find the range of scores for all the students in both classes.

Accepted Answer

63

Answer

57

Answer

60

Answer

54

Question 18

Here are the test marks of 15 students.

7 10 14 15 16 17 18 19 20 20 23 25 30 39 40

Find the interquartile range of these mark.

Accepted Answer

10

Answer

15

Answer

5

Answer

20

Question 19

The length of a book is 33.8 cm, correct to one decimal place.

What is the lower bound of the length of the book?

Accepted Answer

33.75 cm

Answer

33.0 cm

Answer

34.0 cm

Answer

33.5 cm

Question 20

The length of a book is 33.5 cm, correct to the nearest 0.5 cm.

What is the upper bound of the length of the book?

Accepted Answer

33.75 cm

Answer

33.5 cm

Answer

34.0 cm

Answer

33.0 cm

Question 21

Here is a graph of the function $$y=f\left(x\right)$$ .

Write down the coordinates of the turning point of $$y=f\left(x\right)$$ .

Accepted Answer

$$\left(1,\ -4\right)$$

Answer

$$\left(-1,\ 3\right)$$

Answer

$$\left(0.5,\ -4\right)$$

Answer

$$\left(-4,\ 1\right)$$

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics