## Search found 17 matches

Sat Mar 10, 2018 10:43 pm
Forum: Higher Secondary Level
Topic: Geometry
Replies: 1
Views: 3724

### Re: Geometry

What is the source?
Sat Mar 10, 2018 10:25 pm
Forum: Higher Secondary Level
Topic: probability
Replies: 3
Views: 5679

### 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: 12375

### 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: 3134

### 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: 5245

### 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: 5623

### 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: 5245

### 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