Quiz about Percentages, income and commission

Question 1

What is 25% of $440?

Accepted Answer

$110

Answer

$44

Answer

$88

Answer

$140

Question 2

Using leading digit estimation, what is $89 x 21

Accepted Answer

$1800

Answer

$870

Answer

$900

Answer

$1887

Question 3

What percentage would be used to show the original (starting) price of an item?

Accepted Answer

100%

Answer

50%

Answer

1%

Answer

200%

Question 4

What is the original 100% as a decimal?

Accepted Answer

1

Answer

100

Answer

0.01

Answer

0.1

Question 5

What is 20% as a decimal?

Accepted Answer

0.2

Answer

20.0

Answer

2

Answer

0.02

Question 6

What is 10% of $450?

Accepted Answer

$45

Answer

$4.50

Answer

$450

Answer

$4500

Question 7

If increasing a price by 35%, which of the following are correct? Tick all that apply.

Accepted Answer

1.35 x the price

Accepted Answer

Find 35% of the price and add it to the original

Accepted Answer

135% of the price

Answer

35 x the price

Question 8

If a sale is for 40% off the price of all items, which of the following would be correct calculations? Tick all that apply

Accepted Answer

Find 40% of the price and take from the original price

Accepted Answer

Find 60% of the original price

Accepted Answer

0.6 x the original price

Answer

0.4 x the original price

Question 9

Is an increase of 10% followed by a decrease of 10% the same as the original?

Accepted Answer

No, 10 x 1.1 = 11

11 x 0.9 = 9.9

Answer

Yes, 10 - 10 = 0

Answer

I'm not sure

Answer

I like maths

Question 10

A $100 bag is reduced in price by 20% then again by another 20%. What would its price be?

Accepted Answer

100 x 0.8 x 0.8 = 0.64

So $64

Answer

$60 obviously

Answer

100 x 0.2 x 0.2 = 0.04

So $4

Answer

100 x 0.8 x 0.8 = 0.64

So $36

Question 11

What is the formula for percentage change?

Accepted Answer

$$\frac{difference}{original}x100$$

Answer

$$\frac{difference}{new}x100$$

Answer

$$\frac{difference}{original}$$

Answer

$$\frac{difference}{new}$$

Question 12

What is the percentage change when a price goes up from $10 to $12?

Tick two answers.

Accepted Answer

20%

Accepted Answer

$$\frac{12-10}{10}x100$$

Answer

$$\frac{12-10}{12}x100$$

Answer

200%

Question 13

What is the formula for percentage profit?

Accepted Answer

$$\frac{profit}{original\ \cos t}x100$$

Answer

$$\frac{profit}{new\ price}x100$$

Answer

$$\frac{profit-\cos t}{original}x100$$

Answer

I'm not sure

Question 14

What is the percentage profit if Loghan sells a bike for $800 after buying it for $500?

Accepted Answer

60%

Answer

$300

Answer

300%

Answer

$$\frac{300}{800}x100$$

Question 15

A CAS calculator costs a newsagency $140 to buy from a wholesaler, which they plan to sell at a 20% markup. What is its selling price?

Accepted Answer

$168

Answer

$28

Answer

$112

Answer

$2,800

Question 16

A lawnmower is on sale for $350 before (excluding) GST. If GST is 10%, how much will the price be with (including) GST?

Accepted Answer

$385

Answer

$35

Answer

$315

Answer

$420

Question 17

Matty is 180cm tall. If his head is approximately 1/8th of his total height, his head would be closest to what length....?

Accepted Answer

20cm

Answer

10cm

Answer

30cm

Answer

big

Question 18

Zoey works at a book store. She earns $18 per hour during the week and double time on weekends. What type of income does Zoey get?

Accepted Answer

wages

Answer

salary

Answer

commission

Answer

not enough

Question 19

Zoey works at a book store. She earns $18 per hour during the week and double time (2x pay) on weekends. What is her weekend rate?

Accepted Answer

$36p/h

Answer

$18p/h

Answer

$38p/h

Answer

$27p/h

Question 20

Zoey works at a book store. She earns $18 per hour during the week and double time on weekends. How much would she earn for the week if she worked 6 hours during the week and 6 hours on the weekend?

Accepted Answer

$324

Answer

$180

Answer

$216

Answer

$524

Question 21

If Alyssa earnt $400 in a week gross (before tax), and 16% tax had to be taken out, how much tax would this be in dollars?

Accepted Answer

$64

Answer

$52

Answer

$6.40

Answer

$336

Question 22

Zach earns 6% commission on sales at JB HIFI. If he sells $8500 in a week, what would his commission be?

Accepted Answer

$510

Answer

$85

Answer

$170

Answer

$340

Question 23

Dylan, Connor and Mackenzie work 40 hours per week at an insurance company. Dylan earns $20 per hour, Mackenzie gets $850 a week as a salary. Connor gets $100 per day plus 1% of sales. Who earnt the most this week if Connor sold $33,000 of insurance?

Accepted Answer

Mackenzie

Answer

Dylan

Answer

Connor

Question 24

Connor gets a promotion and now makes 2% commission on sales plus his flat rate of $100 a day. How much does he make total for a day when he sells $5,200 worth of insurance?

Accepted Answer

$204

Answer

$152

Answer

$1140

Answer

$620

Question 25

Depreciation is percentage decrease. How much is a car worth after 2 years if it is bought for $25,000, loses 20% of its value in the first year and then 15% the next year?

Accepted Answer

$17,000

Answer

$33,000

Answer

$22,000

Answer

$20,000

Question 26

Seb is doing his weekly budget. He earns $260 a week after tax, but needs to spend $40 on a gift for a friend, $60 on petrol and spend $80 going out. After his expenses, how much will Seb be able to save?

Accepted Answer

$80

Answer

nothing

Answer

$180

Answer

$20

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