Could you please solve this problem?
47799
Show that the number or $r$ combinations of $X$ which contain no consecutive integers is given by $\binom{n-r+1}{r}$
59193
What is the problem in the codes?
13619
Interference conditions problem
20488
May you please explain this?
83120
Interesting problem from brother's test prep
152333
A problem based on pigeonhole
49505
Problem 1.1.5 from Hatcher's
76630
"An (obvious) problem" or "a (obvious) problem"?
106445
Dr Math and his family question. How to solve without trial and error?
125057
How do I solve a problem with term $a^{n} + b^{n}$?
56509
What is the correct way to think about this yet another balls/boxes problem?
36478
How can I solve this problem without having to do it by hand?
70460
How can I solve the following sequence
30814
How is "Can anyone tell me how can I solve this" wrong?
116153
The Notorious Triangle Problem
114476
Problem solving Logical Equivalence Question
26898
Trouble solving two number theoretical problems