Jokes and Riddles Centre - Page 11

Kamog · #**101** July 31st, 2003, 09:02 AM

Yes, that's the right answer!

Jack Simth · #**102** July 31st, 2003, 09:07 AM

Quote:

Originally posted by Slick:
A ship is twice as old as its boiler was when the ship was as old as the boiler is. The sum of their ages is 49 years. How old is the ship and how old is the boiler?

Hmm, does their refer to all three listed objects? If so...

The original boiler might have aged with the ship, even though it was removed. Thus, we have

Ship = BoilerA
2 * BoilerB = Ship
Ship + BoilerA + BoilerB = 49

=> 2 * BoilerB + 2 * BoilerB + BoilerB = 5 * BoilerB = 49
=> BoilerB = 49/5
=> BoilerA = 2 * 49/5
=> Ship = 2 * 49/5

Ship: 17 and 3/5 years old
Current Boiler: 9 and 4/5 years old

What if it didn't?

Quote:

Originally posted by Slick:
A ship is twice as old as its boiler was when the ship was as old as the boiler is. The sum of their ages is 49 years. How old is the ship and how old is the boiler?

Ship = 2 * BoilerA
BoilerB = BoilerA
Ship + BoilerA + BoilerB = 49

=> 5 * BoilerB = 49
=> BoilerB = 9.8 years,
=> BoilerA = 9.8 years,
=> Ship = 19.6 years.

Hmm, still don't like them.

Slick · #**103** July 31st, 2003, 05:03 PM

Sorry, Jack, keep at it. If it is any consolation, the first time I saw this, I couldn't do it. I have seen this problem again a couple of times when I was in college.

Hint: If I am 30 years old now and you are 25 years old now, how many years ago was I the same age as you are now? how old were you then?

(I always have to start this way.) Now if you can quantify that and apply it to this question, you can do it.

Slick.

[ July 31, 2003, 16:20: Message edited by: Slick ]

geoschmo · #**104** July 31st, 2003, 05:41 PM

Quote:

Originally posted by Slick:
A ship is twice as old as its boiler was when the ship was as old as the boiler is. The sum of their ages is 49 years. How old is the ship and how old is the boiler?

I love word problems

age of ship now = x
age of boiler now = (49 - x)

The ship was as old as the boiler is (x - (49 - x)) years ago

At that time, the boiler was (49 - x) - (x - (49 - x)) years old

Therefore

x = 2((49 - x) - (x - (49 - x))

remove parentheses (watch your signs though) and combine terms

x = 2(49 - x - (x - 49 + x)
x = 2(49 - x - x + 49 - x)
x = 2(98 - 3x)
x = 196 - 6x
7x = 196
x = 28

Ship is 28 years old
Boiler is 21 years old

check
Boiler was 14 when the ship was 21 and 28 is 2 times 14.

[ July 31, 2003, 17:07: Message edited by: geoschmo ]

Slick · #**105** July 31st, 2003, 06:18 PM

Quote:

Originally posted by geoschmo:

quote:
Originally posted by Slick:
A ship is twice as old as its boiler was when the ship was as old as the boiler is. The sum of their ages is 49 years. How old is the ship and how old is the boiler?

I love word problems

age of ship now = x
age of boiler now = (49 - x)

The ship was as old as the boiler is (x - (49 - x)) years ago

At that time, the boiler was (49 - x) - (x - (49 - x)) years old

Therefore

x = 2((49 - x) - (x - (49 - x))

remove parentheses (watch your signs though) and combine terms

x = 2(49 - x - (x - 49 + x)
x = 2(49 - x - x + 49 - x)
x = 2(98 - 3x)
x = 196 - 6x
7x = 196
x = 28

Ship is 28 years old
Boiler is 21 years old

check
Boiler was 14 when the ship was 21 and 28 is 2 times 14.

Bravo! Absolutely right.

Slick.

geoschmo · #**106** July 31st, 2003, 08:25 PM

More riddles...

These are joke riddles. The answers aren't real answers but plays on words.

1. How does a mother sheep carry her babies?

2. What do you get if you cross an insect and a rabbit?

3. What invention lets you see through walls?

4. What fly has laryngitis?

5. How many animals did Moses take into the ark?

6. How much dirt is in a hole measuring 2 feet x 5 feet?

7. What do you call an alligator's helper?

8. I have two U.S. coins totaling 6 cents, but one of them is not a penny. What are the two coins?

9. Why is a giraffe's neck so long?

Stone Mill · #**107** July 31st, 2003, 08:30 PM

Quote:

Originally posted by geoschmo:
[QB]More riddles...

These are joke riddles. The answers aren't real answers but plays on words.

4. What fly has laryngitis?

5. How many animals did Moses take into the ark?

6. How much dirt is in a hole measuring 2 feet x 5 feet?

8. I have two U.S. coins totaling 6 cents, but one of them is not a penny. What are the two coins?

QB]

4. hoarse fly
5. none
6. none
8. the nickel is not a penny

DarkHorse · #**108** July 31st, 2003, 08:32 PM

Quote:

Originally posted by geoschmo:
More riddles...

These are joke riddles. The answers aren't real answers but plays on words.

1. How does a mother sheep carry her babies?

2. What do you get if you cross an insect and a rabbit?

3. What invention lets you see through walls?

4. What fly has laryngitis?

5. How many animals did Moses take into the ark?

6. How much dirt is in a hole measuring 2 feet x 5 feet?

7. What do you call an alligator's helper?

8. I have two U.S. coins totaling 6 cents, but one of them is not a penny. What are the two coins?

9. Why is a giraffe's neck so long?

I'll take a stab at a few.

1. On her baaaaack? [edit: wait a second, ewes are the females.. doh!]

2. no answer

3. windows

4. no answer

5. Noah did the ark thing, not Moses

6. holes are empty

7. lunch?

8. a nickel and a penny (the nickel is not a penny)

9. to reach its head?

[ July 31, 2003, 19:35: Message edited by: DarkHorse ]

geoschmo · #**109** July 31st, 2003, 08:36 PM

Stonemill, you got the four you ansered all right.

Dark Horse, you got 3, 5, 6, 8 , and 9 correct.

Still need answers for:

1. How does a mother sheep carry her babies?

2. What do you get if you cross an insect and a rabbit?

7. What do you call an alligator's helper?

[ July 31, 2003, 19:38: Message edited by: geoschmo ]

DarkHorse · #**110** July 31st, 2003, 08:37 PM

Quote:

Originally posted by geoschmo:
Stonemill, you got the four you ansered all right.

Dark Horse, you got 3, 5, 6, 8 , and 9 correct.

Was my edited answer to 1 correct?