Brain Teasers
How Many Ounces?
Joey has 8 drinking glasses, all of different sizes. He has lined them up from smallest to largest and numbered them 1 (smallest) to 8 (largest). He knows that glass #4 holds 10 ounces and that glass #7 holds a pint, or 16 ounces. Now he wants to figure out how much all the others hold!
He experiments by filling up different glasses with water and pouring the water back and forth into other glasses. Here are his results:
-Pouring water from glasses #1 and #2 filled glass #4.
-Pouring water from glasses #1 and #3 filled glass #5.
-Pouring water from glasses #2 and #3 filled glass #6.
-Pouring water from glasses #1 and #5 filled glass #7.
-Pouring water from glasses #1 and #7 filled glass #8.
-Pouring water twice from glass #3 filled glass #7.
-Pouring water twice from glass #4 filled glass #8.
How much water does each glass hold?
He experiments by filling up different glasses with water and pouring the water back and forth into other glasses. Here are his results:
-Pouring water from glasses #1 and #2 filled glass #4.
-Pouring water from glasses #1 and #3 filled glass #5.
-Pouring water from glasses #2 and #3 filled glass #6.
-Pouring water from glasses #1 and #5 filled glass #7.
-Pouring water from glasses #1 and #7 filled glass #8.
-Pouring water twice from glass #3 filled glass #7.
-Pouring water twice from glass #4 filled glass #8.
How much water does each glass hold?
Answer
The glasses hold this much water:-Glass #1 holds 4 ounces.
-Glass #2 holds 6 ounces.
-Glass #3 holds 8 ounces.
-Glass #4 holds 10 ounces.
-Glass #5 holds 12 ounces.
-Glass #6 holds 14 ounces.
-Glass #7 holds 16 ounces.
-Glass #8 holds 20 ounces.
Since (2) #4s = #8 and #4 holds 10 ounces, #8 must hold 20 ounces (10 +10 = 20).
Since (2) #3s = #7 and #7 holds 16 ounces, #3 must hold 8 ounces (16 ÷ 2 = 8).
Since #7 holds 16 ounces and #7 + #1 = #8, then #1 must hold 4 ounces (20 - 16 = 4).
Since #1 + #2 = #4, #2 must hold 6 ounces (10 - 4 = 6).
Since #1 + #5 = #7, #5 must hold 12 ounces (16 - 4 = 12).
Since #2 + #3 = #6, #6 must hold 14 ounces (6 + 8 = 14).
Hide Answer Show Answer
What Next?
View a Similar Brain Teaser...
If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own.
Solve a Puzzle
Comments
Oct 22, 2003
I felt that this one was rather easy
Good teaser!
I think it should be math though.
I think it should be math though.
To post a comment, please create an account and sign in.
Follow Braingle!