Year 11 Revision

Algebra

100

Solve: 

3x + 5 = 20

x = 5

200

Solve:

x + y = 15

x - y = 3

x = 9

y = 6

300

Solve:

4x - 7 = 2x + 9

x = 8

400

A rectangle has a perimeter of 54cm and a short side length of 8cm. What is the other side length?

19cm

500

When you double a number, add 8 and divide by 4 the answer is 7. What is the number?

10

Finance

100

Find 15% of $200

$30

200

A $250 jacket has a 30% discount. What is the sale price?

$175

300

$1200 at 5% simple interest for 3 years. How much interest?

$180

400

$5000 at 3.5% compound interest for 5 years

$5938.84

500

$400 increase 25%, then decrease 25%. Find the final price.

$375

Measurement

100

2.4km = ?m

2400m

200

Rectangle 8.5m x4m has an area of what?

34m²

300

3.5m² = ?L

3500L

400

Cylinder r= 1.5m, h=4m. What is its volume (1 decimal place).

28.3m³

500

Cylinder r=2m, h=3m, filled to 80%. How many litres?

30 200L

Rates and Trig

100

300km in 5 hours. What is the average speed?

60km/h

200

12km/h for 30 min. What is the distance travelled?

6km

300

5m ladder reaches 4m high. what is the base distance?

3m

400

6m ladder at 65^o to ground. What is the height of the end of the ladder from the ground?

5.44m

500

150km at 75km/h then 100km at 50km/h. What is the average speed?

62.5km/h

Data and Probability

100

data set:

5,7,8,10

What is the mean?

7.5

200

Data set:

12, 18, 7, 21, 14

What is the range?

14

300

There is a bag of marbles. In the bag there are 4 red, 3 blue and 5 green.

What is P(not green)?

7/12

400

Mean of 6 numbers is 14. Remove 9; new mean is 15. Above/below original mean?

below

500

Data set:

8,10,11,x,15,16.

Mean of these numbers is 12.

Find x.

x = 12