ATAR Calculation Fundamentals 5

Question 1

What is the greatest common factor (GCF) of 84 and 126?

Accepted Answer

42

Answer

14

Answer

21

Answer

63

Question 2

If a/b = 3/5 and b = 35, what is the value of a?

Accepted Answer

21

Answer

15

Answer

18

Answer

25

Question 3

A cylinder has radius 5 cm and height 10 cm. What is its volume? (Use π ≈ 3.14)

Accepted Answer

785 cm³

Answer

157 cm³

Answer

1570 cm³

Answer

314 cm³

Question 4

What is 7/9 − 2/3 expressed as a fraction in lowest terms?

Accepted Answer

1/9

Answer

5/9

Answer

5/6

Answer

1/3

Question 5

A store marks up goods by 40% then offers a 20% sale. What is the net effect on the original price?

Accepted Answer

12% increase

Answer

20% increase

Answer

8% increase

Answer

No change

Question 6

Evaluate: 5! (5 factorial)

Accepted Answer

120

Answer

25

Answer

60

Answer

100

Question 7

Two angles of a triangle are 47° and 68°. What is the third angle?

Accepted Answer

65°

Answer

55°

Answer

75°

Answer

85°