.

Chapter 1   

.

top nav
directions
question
hints
solution

.
Marathon Members

solution

Shirts identified by person

Cindy wore 3417.
Lisa wore 5216.
Maria wore 5500.
Tommy wore 5328.
Zack wore 5330.

explanation

Step 1
List the numbers from lowest to highest:
3,417
5,216
5,328
5,330
5,440

Step 2
Use the clues.

  • Cindy had the lowest number.
    Cindy's number must be 3,417.
  • The digit in the tens place on Tommy's shirt is one more than the digit in the tens place on Cindy's shirt.
    Cindy's number is 3,417. One more than 1 is 2. The only number with a 2 in the tens place is 5,328. Tommy's number must be 5,328.
  • Maria was the last person to sign in for the race.
    There were 5,500 people in the race.
    Maria's number must be 5,500.
  • Zack and Tommy were closest to each other in line.
    The second clue proved that Tommy's number is 5,328.
    The number closest to 5,328 is 5,330.
  • Lisa's number is lower than Tommy's.
    Tommy's number is 5,328. The only number that is left without an owner is 5,216. That is lower than Tommy's. It must be Lisa's.

 


Kids' Place | Kids' Houghton Mifflin Mathematics | Brain Teasers
Education Place | Site Index

Copyright © 2000 Houghton Mifflin Company. All Rights Reserved.
Terms and Conditions of Use | Privacy Policy