Mathematics Quiz Year 8-Week 14

Round off 53876 (2s.f)

A jacket was originally priced at $120 but is now sold at a 15% discount. What is the sale price of the jacket?

• $108
• $102
• $90
• $115

25% of 120?

• 40
• 20
• 30
• 50

In a right-angled triangle, if one of the legs is 3cm, the other leg is 4cm, what is the length of the hypotenuse?

There are 20000 seeds in a box. Ali wants to know how many seeds will germinate. What should be the sample size?

• 50

• 250

• 2000

• 10000

If a farmer has 15000 apples and wants to know how many will be sold, what should be the sample size?

• 100

• 300

• 1500

• 7500

What is the first step in planning a survey?

• Design the questionnaire

• Define the target population

• Analyze the data

• Distribute the survey