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#6226 2019-02-11 00:55:43
- Jai Ganesh
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- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
#4357. Two trains of lengths 110 meters and 90 meters are running on parallel lines in the same direction with a speed of 45 kilometers per hour and 50 kilometers per hour respectively. In what time will they pass each other? (in seconds)
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#6227 2019-02-12 00:47:57
- Jai Ganesh
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- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
#4358. A person can row upstream 8 kilometers per hour and downstream 12 kilometers per hour. What is the speed of the stream?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#6228 2019-02-12 17:38:40
- Monox D. I-Fly
- Member
- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000
Re: Oral puzzles
Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.
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#6229 2019-02-13 00:55:25
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
#4359. Gerard, Steve, and Oliver start running around a circular stadium and complete one round in 14 seconds, 8 seconds, and 15 seconds respectively. In how much time will they meet again at the starting point?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#6230 2019-02-13 17:29:41
- Monox D. I-Fly
- Member
- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000
Re: Oral puzzles
Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.
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#6231 2019-02-13 21:42:55
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
The solution #4359 is correct. Neat work, Monox D. I-Fly!
#4360. A train travels at the speed of 40 kilometers per hour and another train at a speed of 20 meters per second. What is the ratio of the speed of the first train and that of the second train?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#6232 2019-02-14 14:44:16
- Monox D. I-Fly
- Member
- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000
Re: Oral puzzles
Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.
Offline
#6233 2019-02-14 16:51:30
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
.
The solution #4360 is correct. Marvelous, Monox D. I-Fly!
#4361. A car travels a distance of 560 kilometers in 9.5 hours partly at 40 kilometers per hour and partly at 160 kilometers per hour. What is the distance it travels at the speed of 160 kilometers per hour?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#6234 2019-02-16 00:42:52
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
#4362. A 320 meter long train crosses a pole in 16 seconds. It stops five times of duration 18 minutes each. What time will it take in covering a distance of 576 kilometers?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#6235 2019-02-17 01:00:47
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
#4363. An inspector is 228 meters behind the thief. The inspector runs 42 meters and the thief runs 30 meters in a minute. In what time will the inspector catch the thief?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#6236 2019-02-18 00:42:47
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
#4364. A man riding a bicycle completes one lap of a square field along its perimeter at the speed of 43.2 kilometers per hour in 1 minute 20 seconds. What is the Area of the field?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#6237 2019-02-19 01:02:44
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
#4365. A man riding a bicycle, completes one lap of a circular field along its circumference at the speed of 79.2 kilometers per hour in two minutes forty seconds. What is the Area of the field? Use
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#6238 2019-02-21 00:31:56
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
#4366. A boat can travel 9.6 kilometers downstream in 36 minutes. If the speed of the water current is 10% of the speed of the boat downstream, how much time will the boat take to travel 38.4 kilometers upstream?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#6239 2019-02-23 01:10:45
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
#4367. Find the value of g.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#6240 2019-02-25 01:03:34
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
.
#4368. Find the value of n.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#6241 2019-02-25 14:23:19
- Monox D. I-Fly
- Member
- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000
Re: Oral puzzles
Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.
Offline
#6242 2019-02-25 16:31:20
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
.
A minor calculation error by you, Monox D. I-Fly! Keep trying!
#4369. Find the value of t.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#6243 2019-02-25 18:01:43
- Monox D. I-Fly
- Member
- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000
Re: Oral puzzles
Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.
Offline
#6244 2019-02-25 22:23:52
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
.
The solution #4369 is correct. Keep it up, Monox D. I-Fly!
#4370. Evaluate:
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#6245 2019-02-26 13:50:58
- Monox D. I-Fly
- Member
- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000
Re: Oral puzzles
Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.
Offline
#6246 2019-02-26 15:47:33
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
The solution #4370 is correct. Splendid, Monox D. I-Fly!
#4371. Find the value of h.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#6247 2019-02-26 20:50:02
- Monox D. I-Fly
- Member
- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000
Re: Oral puzzles
Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.
Offline
#6248 2019-02-27 00:09:48
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
.
The solution #4371 is correct. Neat work, Monox D. I-Fly!
#4372. Evaluate:
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#6249 2019-02-27 13:48:48
- Monox D. I-Fly
- Member
- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000
Re: Oral puzzles
Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.
Offline
#6250 2019-02-27 14:23:16
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,425
Re: Oral puzzles
Hi,
The solution #4372 is correct. Good work, Monox D. I-Fly!
#4373. Evaluate: 68% of 595 - 45% of 372.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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