Q46 / 160 · WBJEE 2012 · Mathematics
The remainder obtained when $11+2 !+95 !$ is divided by 15 is
- A14
- Correct answerB3
- C1
- D0
Solution
since, all terms from 5 lonwards are divisible by 15 and $1!+2!+3!+4 !=33$
The required remainder after dividing by 15 will be 3 .
Hence, the correct answer is option: 'B'.