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Math Problem of the Day
       May 2013
5/1 Going On Vacation
The floor plan of a vacation cottage is
shown. Both bedrooms have the same
dimensions. What is the total area of the
cottage, in square feet?
5/2 That’s Complex!

Simplify the complex fraction.

             5 1
              −
             6 3
             3 1
              −
             8 4
5/3 Goomats and Zignots

 Five goomats plus a zignot is 87.
 A goomat plus five zignots is 99.
 What is the sum of two goomats
 and two zignots?

                   +      = 87
       +                   = 99
5/6 Angles in a Clock

What is the number of degrees the
minute hand of a clock moves from
6:04 pm and 6:21 pm?
5/7 Wire Weight
A wire of uniform diameter and
composition that weighs 32 lb is cut into
two pieces. One piece is 90 yd long and
weighs 24 lb. What is the length, in yd,
of the original wire?
5/8   Shaded Regions
Square WXYZ is partitioned into four
smaller congruent squares, and then
portions of those squares are shaded, as
shown. What fractional part of the square
is shaded?
Math problem of the day may
5/10 Printing Business

If 45 business cards can be printed
in 30 seconds, how long will it take
to print 555 business cards at the
same rate?
5/13 Sums and Products

What integer can be added to 13/12
or multiplied by 13/12 to give the
same result?
5/14 Find the Number

If one-half of a number is eight less
than two-thirds of the number, what
is the value of the number?
5/15 Minimize the Product

Find the least possible product of
two integers whose sum is 16?



      a + b = 16
5/16 Simply Perfect!

A perfect number is a number whose
proper factors add to equal the number.
For example, 6 is a perfect number
because 1 + 2 + 3 = 6. Find another
perfect number.
5/17 How odd!

 What is the smallest odd integer
 with exactly six positive factors?
5/20 Picture this!

  What is the minimum number of
  square tiles needed to exactly
  cover a rectangle whose length is
  50% greater than its width?
5/21 How Many Numbers?

How many different four-digit
numbers can be formed if the digits
2, 3, 4 and 5 must be used in each
of the integers?

      ___, ___ ___ ___
Math problem of the day may
5/23 Perimeter Puzzle

A regular polygon has a total of 9 diagonals.
If each side measures 2.5 inches, what is the
perimeter of the polygon?
5/24 Area: Holding Steady
The length of a rectangle is three times its
width. A new rectangle is created by
decreasing the length of the original
rectangle by half. By what factor must the
original width be multiplied, if the area
remains unchanged?
5/27 Sweet Treats

           The Sachem singers earned
           $273 by selling a combined
           total of 440 brownies and
           cookies during their concert.
           If each brownie sold for
           $0.75 and each cookie sold
           for $0.50, how many
           brownies did they sell?
5/28 Guess the Number

If twice a number is equal to 6 more
than half the number, what is the
number?
5/29 Solve this one

                  In the figure shown,
                  the distance
                  between adjacent
                  dots in each row and
                  column is 1 unit.
                  Find the area of the
                  shaded region in
                  square units.
5/30 Dollars to Dollars

 The ratio of John’s allowance to Bill’s
 allowance is 3:7. The ratio of John’s
 allowance to Mary’s allowance is 2:5.
 What is the ratio of Mary’s allowance
 to Bill’s allowance?
5/31 Squares and Ratios



  ?
         The difference of the
         squares of two distinct
         positive numbers is equal to

  ?      twice the square of their
         difference. What is the
         ratio of the smaller number
         to the larger?
Problems adapted from Math Counts School
           Sprint Round 2012

More Related Content

Math problem of the day may

  • 1. Math Problem of the Day May 2013
  • 2. 5/1 Going On Vacation The floor plan of a vacation cottage is shown. Both bedrooms have the same dimensions. What is the total area of the cottage, in square feet?
  • 3. 5/2 That’s Complex! Simplify the complex fraction. 5 1 − 6 3 3 1 − 8 4
  • 4. 5/3 Goomats and Zignots Five goomats plus a zignot is 87. A goomat plus five zignots is 99. What is the sum of two goomats and two zignots? + = 87 + = 99
  • 5. 5/6 Angles in a Clock What is the number of degrees the minute hand of a clock moves from 6:04 pm and 6:21 pm?
  • 6. 5/7 Wire Weight A wire of uniform diameter and composition that weighs 32 lb is cut into two pieces. One piece is 90 yd long and weighs 24 lb. What is the length, in yd, of the original wire?
  • 7. 5/8 Shaded Regions Square WXYZ is partitioned into four smaller congruent squares, and then portions of those squares are shaded, as shown. What fractional part of the square is shaded?
  • 9. 5/10 Printing Business If 45 business cards can be printed in 30 seconds, how long will it take to print 555 business cards at the same rate?
  • 10. 5/13 Sums and Products What integer can be added to 13/12 or multiplied by 13/12 to give the same result?
  • 11. 5/14 Find the Number If one-half of a number is eight less than two-thirds of the number, what is the value of the number?
  • 12. 5/15 Minimize the Product Find the least possible product of two integers whose sum is 16? a + b = 16
  • 13. 5/16 Simply Perfect! A perfect number is a number whose proper factors add to equal the number. For example, 6 is a perfect number because 1 + 2 + 3 = 6. Find another perfect number.
  • 14. 5/17 How odd! What is the smallest odd integer with exactly six positive factors?
  • 15. 5/20 Picture this! What is the minimum number of square tiles needed to exactly cover a rectangle whose length is 50% greater than its width?
  • 16. 5/21 How Many Numbers? How many different four-digit numbers can be formed if the digits 2, 3, 4 and 5 must be used in each of the integers? ___, ___ ___ ___
  • 18. 5/23 Perimeter Puzzle A regular polygon has a total of 9 diagonals. If each side measures 2.5 inches, what is the perimeter of the polygon?
  • 19. 5/24 Area: Holding Steady The length of a rectangle is three times its width. A new rectangle is created by decreasing the length of the original rectangle by half. By what factor must the original width be multiplied, if the area remains unchanged?
  • 20. 5/27 Sweet Treats The Sachem singers earned $273 by selling a combined total of 440 brownies and cookies during their concert. If each brownie sold for $0.75 and each cookie sold for $0.50, how many brownies did they sell?
  • 21. 5/28 Guess the Number If twice a number is equal to 6 more than half the number, what is the number?
  • 22. 5/29 Solve this one In the figure shown, the distance between adjacent dots in each row and column is 1 unit. Find the area of the shaded region in square units.
  • 23. 5/30 Dollars to Dollars The ratio of John’s allowance to Bill’s allowance is 3:7. The ratio of John’s allowance to Mary’s allowance is 2:5. What is the ratio of Mary’s allowance to Bill’s allowance?
  • 24. 5/31 Squares and Ratios ? The difference of the squares of two distinct positive numbers is equal to ? twice the square of their difference. What is the ratio of the smaller number to the larger?
  • 25. Problems adapted from Math Counts School Sprint Round 2012