heh heh need help in Pri 3 maths....


ninelives

Senior Member
Jan 16, 2002
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ninelives.clubsnap.org
#1
been trying to figure this one out for the last few hours without success..... google here and there also no help...... been a long week and brain is fried from work..... so I'm mathematically challenged tonight ha ha

I'm almost a nervous wreck and brain cannot take this torture any more......



question:

"My digital watch is showing 03:33 , How many times will my watch display 3 or more of the same number in a row over the course of a day?"

"My watch is on a 12-hour scale, not military time."






ps: For those who guess it correctly, i got a free gift for you.
and if you already know the answer, quiet ok? dont spoil the fun
 

Last edited:

ed9119

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Staff member
Mar 11, 2002
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www.walkeast.com
#3
I REALLY do not want to zap my senior ............:bsmilie: :bsmilie:
(your sig tag is SO appropriate)

yeah, i felt so silly once the answer was solved...... went about it all wrong in the first place kekekeke
 

ZerocoolAstra

Senior Member
Mar 13, 2008
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#4
been trying to figure this one out for the last few hours without success..... google here and there also no help...... been a long week and brain is fried from work..... so I'm mathematically challenged tonight ha ha

I'm almost a nervous wreck and brain cannot take this torture any more......



question:

"My digital watch is showing 03:33 , How many times will my watch display 3 or more of the same number in a row over the course of a day?"

"My watch is on a 12-hour scale, not military time."






ps: For those who guess it correctly, i got a free gift for you.
and if you already know the answer, quiet ok? dont spoil the fun
trick question?
If a time like 01:00 also satisfies the "3 numbers in a row" criteria, then a lot leh... Tired also... cannot count! :)
 

leezacch

New Member
Jan 5, 2009
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#6
basically it's 7 times (IMHO).
First, let's settle with 4 numbers in a row, we have:

1. 11:11
2. 00:00 (if this counts, but.. for analogue clocks, i presume they refer as 12.00AM?)

Then consider three numbers in a row:

3. 01:11
4. 02:22
5. 03:33
6. 04:44
7. 05:55
8. 10:00

Then it's analogue clock.. so.. probably you have to count twice the frequency. so.. should be 16 times (incl. of 00:00) or 14 times (excl. of 00:00).

Hope i'm right. Heh.
 

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ahbian

Senior Member
May 23, 2006
2,467
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#7
Hope its not a trick question, but since its a slow saturday...

00:00 x 1
00:01 x 1
00:02 x 1
00:03 x 1
00:04 x 1
00:05 x 1
00:06 x 1
00:07 x 1
00:08 x 1
00:09 x 1
01:11 x 2
02:22 x 2
03:33 x 2
04:44 x 2
05:55 x 2
10:00 x 2
11:10 x 2
11:11 x 2
11:13 x 2
11:14 x 2
11:15 x 2
11:16 x 2
11:17 x 2
11:18 x 2
11:19 x 2
12:22 x 1

41 times?? :think:
 

Last edited:

ninelives

Senior Member
Jan 16, 2002
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ninelives.clubsnap.org
#8
leezacch is very close, this is not militarty time, hence 0:00 is wrong.

abian, almost there. if you remove the 0:00, look closer.
 

Last edited:
Apr 24, 2007
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photoblog.com
#9
how abt

12:22 am
01:11 am
02:22 am
03:33 am
04:44 am
05:55 am
10:00 am
11:11 am
12:22 pm
01:11 pm
02:22 pm
03:33 pm
04:44 pm
05:55 pm
10:00 pm
11:11 pm

ie 16 times?
 

leezacch

New Member
Jan 5, 2009
25
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#10
Hope its not a trick question, but since its a slow saturday...

00:00 x 1
00:01 x 1
00:02 x 1
00:03 x 1
00:04 x 1
00:05 x 1
00:06 x 1
00:07 x 1
00:08 x 1
00:09 x 1
01:11 x 2
02:22 x 2
03:33 x 2
04:44 x 2
05:55 x 2
10:00 x 2
11:10 x 2
11:11 x 2
11:13 x 2
11:14 x 2
11:15 x 2
11:16 x 2
11:17 x 2
11:18 x 2
11:19 x 2
12:22 x 1

41 times?? :think:
ahbian's arguments look very convincing !

But then again, since it's not military time.. means zeros in the hourly digit(s) are redundant
Probably it will be:

1. 12.22 AM
2. 1.11 AM
3. 2.22AM
4. 3.33AM
5. 4.44AM
6. 5.55AM
7. 10.00AM
8. 11.11AM

So to get frequency for one course day, multiply the frequency by 2, we will get 16. Haha, same as lightbrush
 

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ahbian

Senior Member
May 23, 2006
2,467
0
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#12
Even in my daily life, i am so used to setting by watch to 24 hour format, took me some time to think what midnight or 1 minute after midnight should be. :confused:

Trying again.

01:11 x 2
02:22 x 2
03:33 x 2
04:44 x 2
05:55 x 2
10:00 x 2
11:10 x 2
11:11 x 2
11:13 x 2
11:14 x 2
11:15 x 2
11:16 x 2
11:17 x 2
11:18 x 2
11:19 x 2
12:22 x 2

32 times??
 

ahbian

Senior Member
May 23, 2006
2,467
0
0
#14
Even in my daily life, i am so used to setting by watch to 24 hour format, took me some time to think what midnight or 1 minute after midnight should be. :confused:

Trying again.

01:11 x 2
02:22 x 2
03:33 x 2
04:44 x 2
05:55 x 2
10:00 x 2
11:10 x 2
11:11 x 2
11:12 x 2
11:13 x 2
11:14 x 2
11:15 x 2
11:16 x 2
11:17 x 2
11:18 x 2
11:19 x 2
12:22 x 2

34 times??
:bsmilie::bsmilie:
 

ahbian

Senior Member
May 23, 2006
2,467
0
0
#16
Whats that? Aiyah, I thought the prize is a watch.

I needed one. :bsmilie:

Will donate the prize back to you. You can create another question for others if you really want to give away. Sorry to make you go back to square one. :bsmilie:
 

Last edited:

cleonbus

Deregistered
Nov 18, 2006
7,060
0
0
Kuala Lumpur
#19
Whats that? Aiyah, I thought the prize is a watch.

I needed one. :bsmilie:

Will donate the prize back to you. You can create another question for others if you really want to give away. Sorry to make you go back to square one. :bsmilie:
It's a aircon:)
 

Jul 23, 2005
478
0
0
Singapore, West
#20
Apart from counting, which bit of this question is really maths? :dunno:
It is more lateral thinking and english proficiency to me.

been trying to figure this one out for the last few hours without success..... google here and there also no help...... been a long week and brain is fried from work..... so I'm mathematically challenged tonight ha ha

I'm almost a nervous wreck and brain cannot take this torture any more......

question:

"My digital watch is showing 03:33 , How many times will my watch display 3 or more of the same number in a row over the course of a day?"

"My watch is on a 12-hour scale, not military time."

ps: For those who guess it correctly, i got a free gift for you.
and if you already know the answer, quiet ok? dont spoil the fun