Compound Interest and Reverse Percentages

Change 6.75% to a decimal.

• 67.5
• 0.675

• 675
• 0.0675

Tags

CCSS.5.NBT.A.3

What is a 10% increase as a multiplier?

• 0.10

• 1.10
• 0.90
• 10

What is a 10% decrease as a multiplier?

• 0.10

• 1.10
• 0.90
• 10

What is a 2.5% increase as a multiplier?

• 0.25

• 0.025

• 1.025

• 1.25

What is a 2.5% decrease as a multiplier?

• 0.025

• 0.25

• 0.975

• 0.985

£4000 is invested in bank account paying 5% per annum (per year).

How much is the investment worth in 3 years?

• £5000.00
• £4630.50
• £4800.75
• £4600.00

A grandparent invests £1000 in their grandchild's bank account when they are born.

The interest rate is 7%. How much would it be worth on their 18th birthday?

• £1260

• £3379.93

• £1500.50
• £2260

A new care bought for £32000 depreciates (loses value) at 20% each year for the first 4 years.

What will the value of the car be when its 4 years old?

• £13107.20
• £21280.80

• £6400

• £25600

A jacket is in a sale with 20% off and now costs £220. What was the original cost?

• £275

• £176

• £264

• £183.33

Josh answered 80% of the questions in a test correctly.

He answered 48 of the questions correctly.

Work out the total number of questions in the test.