Answer sheet

Measurement

Problem	Answer
1	(5 x 3 x 2), (5 x 6 x 1) (30 x 1 x 1), (15 x 2 x 1) (3 x 10 x 1)
2	The 14 inch, $7, or smaller
3	100 m^2 or 100 sq. m.
4	10 minutes
5	100 cm^2 or 100 sq. cm.

Number sense

Problem	Answer
1	6
2	17
3	72
4	-2
5	17

Probability and statistics

Problem	Answer
1	Mean: 84.9 Mode: 75 Median: 88 Range: 30, or 70-100
2	1/6 (3 pts for 6/36)
3	2
4	29
5	7/26 (3 pts for 14/52)

March 21, 1998

FIRST YEAR MATH OLYMPIAD

Algebraic sense

Problem	Answer
1	48
2	8
3	35
4	$300
5	8 pounds or 8 lb

Geometric sense

Problem	Answer
1	9 yd^2 or 9 sq. yd.
2	6 p ft. or any number between 18.84 ft and 18.8496 ft inclusive
3	8 in^2 or 8 sq. in.
4	56
5	100 degrees

2

Answer sheet

Measurement

Problem	Answer
1	105 cm^3or 105 cu. cm.
2	60 ft^2or 60 sq. ft.
3	440
4	110 degrees
5	100 cm^2 or 100 sq. cm.

Number sense

Problem	Answer
1	8 oz, $1.45 or the larger one
2	342
3	3 prime factors (3 pts for 2, 3, and 5)
4	78
5	950

Probability and statistics

Problem	Answer
1	1
2	29
3	11/4165 (3 pts for 17,160/6,497,400)
4	108
5	216

March 21, 1998

SECOND YEAR MATH OLYMPIAD

Algebraic sense

Problem	Answer
1	63
2	4
3	110
4	1 and 1/3 or 1.3 days
5	4 (M-1) or 4M - 4 or M^2 - (M - 2)^2

Geometric sense

Problem	Answer
1	9 yd^2 or 9 sq. yd.
2	36 m
3	50 ft
4	72 p in^3 cu in or any number between 226.08 in^3 and 226.1952 in^3 inclusive
5	6.93 m^2 (sq m) or 4 Ö3 m^2 (sq m)