Math Revision 1

What is 15% of $40?

• $6

• $0.60

• $60

• $0.06

What is 3/8 as decimal?

• 2.666

• 0.380

• 0.375

• 0.833

What is 0.04 as a percentage?

• 0.4%

• 4%

• 40%

• 400%

A radio has a marked price of $80. What is the cash price if a 25% discount is given for cash?

• $20

• $40

• $60

• $100

A calculator if bought for $50 and sold for $60. What is the percentage profit?

• 16.66%

• 20%

• 10%

• 5%

The exchange rate for EC to US dollars is

US$1.00 = EC$2.70

How much is US$50 in EC dollars?

• $135

• $13.50

• $18.52

• $182.50

A stove can be purchased on hire purchase for a deposit of $200 and 24 monthly payments of $50.

What is the hire purchase price?

• $1200

• $1000

• $1400

• $200

Jan works a 40 hour week. She is paid $7.50 per hour.

How much does she earn each month?

• $300

• $600

• $900

• $1200

What is

2a + b - 3a - b?

• 5a

• -a

• 5a -2b

• -a - 2b

Work out

6a(4 - 3a)

• 6a

• 21a

• 24a - 3a²

• 24a - 18a²