Monday, January 18, 2010
Insert a Letter!
What single letter can be inserted into each of these four words to form four new words?
Answer:
N. The four words formed are EARNS, RANGE, SNACK, and ARENA.
- EARS
- RAGE
- SACK
- AREA
Answer:
N. The four words formed are EARNS, RANGE, SNACK, and ARENA.
Identify Heavy Balls!
Three out of six look alike balls are heavy. Identify the heavy balls by three times weighing on a beam balance!
Answer:
Number the balls: 1, 2, ..., 6. Then weigh (No. 1, No. 2) vs (No. 4, No. 5), next weigh (No. 2, No. 3) vs (No. 5, No. 6), and then (No. 3, No. 1) vs (No. 6, No. 4).
Answer:
Number the balls: 1, 2, ..., 6. Then weigh (No. 1, No. 2) vs (No. 4, No. 5), next weigh (No. 2, No. 3) vs (No. 5, No. 6), and then (No. 3, No. 1) vs (No. 6, No. 4).
Friday, January 15, 2010
How much money do Todd and Steve have?
Todd and Steve's money are such that if Todd receive $140 from Steve they will be in the ratio 5 to 1, but if Steve receives $64 from Todd, their ratio will be 1 to 2. How much money do Todd and Steve have in their pockets?
Answer:
Todd: $200
Steve: $208
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