## Search found 17 matches

- Sat Mar 10, 2018 10:43 pm
- Forum: Higher Secondary Level
- Topic: Geometry
- Replies:
**1** - Views:
**3175**

### Re: Geometry

What is the source?

- Sat Mar 10, 2018 10:25 pm
- Forum: Higher Secondary Level
- Topic: probability
- Replies:
**3** - Views:
**4871**

### Re: probability

mathlomaniac wrote: [/tfrac{8}{8C3}]

- Fri Mar 09, 2018 5:49 pm
- Forum: Higher Secondary Level
- Topic: A problem of combinatorics
- Replies:
**9** - Views:
**10613**

### Re: A problem of combinatorics

36×35/2 =630

- Thu Mar 08, 2018 10:36 pm
- Forum: Secondary Level
- Topic: Boxes and Cards Problem
- Replies:
**2** - Views:
**2571**

### Re: Boxes and Cards Problem

Answer Box No. $ 3$ Solution Note that $2015=2016-1=(12×168)-1$, So,2015 is in form $12k-1$ where $k=1,2,3,...$ We are placing cards in the boxes in such a manner that every 12th card will be plced at the same box....($1$) Now,We have to put card no.$11$ in the $3$ rd box(According to the statement...

- Thu Mar 08, 2018 10:34 pm
- Forum: Secondary Level
- Topic: Greatest Positive Integer $x$
- Replies:
**7** - Views:
**4029**

### Re: Greatest Positive Integer $x$

Greatest possible integer value of X can be 88783 because 23 is repeated 88789 times in 2000!

- Thu Mar 08, 2018 8:37 pm
- Forum: Higher Secondary Level
- Topic: Rightmost two digits of 3^999
- Replies:
**5** - Views:
**4492**

### Re: Rightmost two digits of 3^999

27 is correct answer.

- Thu Mar 08, 2018 2:34 pm
- Forum: Secondary Level
- Topic: Greatest Positive Integer $x$
- Replies:
**7** - Views:
**4029**

### Re: Greatest Positive Integer $x$

Total times 23 and its multiple appear in 2000! Is 5213

Therefore maximum value of X would be 5213-6=5207

Therefore maximum value of X would be 5213-6=5207