SECOND YEAR MATH OLYMPIAD March 25, 2000

 

 


ANSWERS

Number Sense

Problem

Answer

1

72

2

        49

        63

(2 points each)

3

13

4

3

5

25

 

Measurement

Problem

Answer

1

31,536,000

2

435 minutes

Subtract 1 point for 7 hr 15 min)

3

440

4

1116 sq ft

Subtract 1 point for missing or incorrect units

5

8 minutes

or 2/15 hour.Subtract 1 point for missing or incorrect units

 

Geometrical Sense

All answers must have correct units!

Subtract one point for missing or incorrect units.

Problem

Answer

1

10 ft

2

Any answer between 3.8125 sq in and

3.8175 sq in

3

30 cm

4

Any answer between 545.04 and 545.09733 sq ft

5

30 meters

 

 

 

 

 

Probability and Statistics

Problem

Answer

1

99/54145or

11,880/67,497,400

2

Mean = 22

Mode = 15

Median = 18

Range = 33

(1 point each)

3

1/24

4

18

5

66

 

Algebraic sense

Problem

Answer

1

12

2

17 (no penalty for mentioning the number of pigs)

3

15

4

77

5

$27