Y8 C14 & 15: Ratio and Probability

Multiple Choice

Simplify 27:3

• 27:3

• 9:1

• 1:9

• 3:27

Multiple Choice

Simplify 32:24

• 4:3

• 32:24

• 16:12

• 1.33:1

Multiple Choice

Simplify 30:400

• 15:200

• 6:80

• 3:40

• 1:13.33

Fill in the Blanks

Simplfy 25:30:10

Fill in the Blanks

250 m : 1 km

Multiple Choice

Share RM 90 in the ratio 1:3:5

• RM 90, RM 270, RM 450

• RM 10, RM 30, RM 50

• RM 10, RM 30, RM 60

• RM 9, RM 27, RM 45

Fill in the Blanks

A box of chocolates contains milk, white and dark chocolates in the ratio of 5:1:2. The box has 56 chocolates altogether. How many milk chocolates there are?

Multiple Select

A gardening club is made up of men, women and children in ratio of 5:4:11. Altogether there are 2240 members of the gardening club. Choose all correct statements.

• Women = 448

• Men = 560

• Men = 448

• Children = 1232

• Children = 448

Multiple Choice

Four cupcakes is RM 10. Work out mentally how many it cost for 8 cupcakes.

• RM 20

• RM 5

• RM 2.5

• RM 25

Fill in the Blanks

Ahmad and Alicia share some sweets in ratio 2:3. Ahmad gets 14 sweets. How many sweets do they share?

Fill in the Blanks

These are the probabilities for some severe weather in the next month.

Hurricane: 0.2, Earthquake: 0.05, Flooding: 0.1, High temperatures: 0.7

*Find the probability that there will not be a hurricane.

Fill in the Blanks

The probability that a team will reach the semi-finals in a competition is 0.6. The probability that the team will reach the final is 0.3. What is the probability that the term will not reach the final.

Fill in the Blanks

This is a calender for August one year. Ms Jane chose one day at random. Find the probability that she chooses a Sunday.

Fill in the Blanks

There are 50 numbers in order. Find the probability of getting NOT a prime number.

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