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

#### ninelives

##### Senior Member
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

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#### ed9119

##### Moderator
Staff member
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
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!

#### ninelives

##### Senior Member
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!
01:00 does not count, they are not in a row ;p .

#### leezacch

##### New Member
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
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:

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#### ninelives

##### Senior Member
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.

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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
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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34 right??

#### ahbian

##### Senior Member
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.

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
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.

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:

#### ninelives

##### Senior Member
ok, i think i will award ahbian, since he was the one who submitted the answer 1st.

here's is the image.

if cannot see the img, link is here :

http://img534.imageshack.us/img534/8643/snc00087w.jpg

Please pm me when you want to collect.

Good Job ! :thumbsup:

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#### ahbian

##### Senior Member
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:

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#### night86mare

##### Deregistered
01:00 does not count, they are not in a row ;p .
you need to say ADJACENT and IN A ROW

for 01:00 not to count.

otherwise, on the same line = in the same row.

#### wootsk

##### Deregistered
you need to say ADJACENT and IN A ROW

for 01:00 not to count.

otherwise, on the same line = in the same row.
You want the prize right, tell us you want it desperately...
:bsmilie::bsmilie::bsmilie:

#### cleonbus

##### Deregistered
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

#### ConnorMcLeod

##### New Member
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