Reverse Percentage and Compound Interest

1) A camera costs £180 in a 10% sale. What was the pre-sale price?

• £200

• £18

• £198

• £162

3) The cost of a holiday, including VAT at 20% is £540. What is the pre-VAT price?

• £648

• £450

• £675

• £432.80

5) The sale price of a television is £420 after a 15% reduction. What was the price before the sale?

• £63

• £2800

• £494

• £365

The cost of a family ticket to Alton Towers is reduced by 35% to £123.50. What was the original cost?

• £80.28

• £166.73

• £190

• £91.48

Find the balance in the account after the given period.

$3400 principal earning 3.6% compounded annually after 2 years

• $3,420.43

• $3,649.21

• $3,675.39

• $6,288.64

Heather

invested $8,000 in a 4-year Certificate of Deposit (CD) that pays 4.1% interest

compounded annually. What is the value of the CD at the end

of the 4 years?

• $9,394.92

• $9,312.00

• $1394.00

• $1312.00

Damara invests $3500 at 2% compounded continuously for 5 years. How much will she have in her account after 5 years?

• $3868.10

• $3886.10

• $3688.10

• $3286.10

25% of $180

• $45

• $7.20

• $90

• correct answer not shown

What is 17 marks as a percentage out of 20?

• 85%

• 17%

• 80%

• 72%

There are approximately 15000 red cabs in Hong Kong. This represents approximately 80% of the total taxis. Find the total number of taxis in Hong Kong

• 18000

• 18750

• 18650

• 20105