FIRST YEAR MATH OLYMPIAD March 25, 2000                                             Answer sheet

 1

Number Sense

 Problem Answer 1 \$182.21 (subtract 1 point for \$182.20) 2 21 3 13 4 1/2 point for each entry. % sign is not necessary.  Fraction which is not reduced is wrong.       x               .4            40%     23/25       x            92%     9/50         .18          x     x               .6            60% 5 In order: 1/4 .26 .3 3/8 .38 (no partial credit)

Measurement

 Problem Answer 1 86,400 2 260 (units not necessary) 3 9 4 \$4.80 or 480 cents 5 16

Geometrical Sense

All answers must have correct units!  Subtract one point for each answer that has incorrect of missing units.

 Problem Answer 1 Area = 167 sq cm Perimeter = 60 cm 2 Area = any number between 1017.36 sq ft and 1017.8760 sq ft Perimeter = any number between 113.04 ft and 113.09733 ft 3 Any answer between 545.04 sq ft and 545.09733 sq ft 4 120o or 120 degrees 5 Any number between 3.8125 sq in and 3.8175 sq in

Probability and Statistics

 Problem Answer 1 4/36 or 2/18 or 1/9 2 11/221 or 132/2652 3 1/6 or 2/12 4 Mean = 22 Mode = 15 Median = 18 Range = 33 5 49/325

Algebraic sense

 Problem Answer 1 18 2 6 3 12 4 17 (no penalty for mentioning the number of pigs) 5 77