TCS
Company
Logical Reasoning
Cryptography
How many motor vehicles registration number plates can be formed with the digits 1, 2, 3, 4, and 5(no digits being repeated) if it is given that registration number can have 1 to 5 digits?
Read Solution (Total 6)
-
- 1 digit = 5 ways
2 digit = (5*4)ways
3 digit = (5*4*3)ways
4 digit = (5*4*3*2)ways
5 digit = (5*4*3*2*1)ways
total ways = 5+20+60+120+120= 325 ways - 11 years agoHelpfull: Yes(62) No(3)
- 5p1+5p2+5p3+5p4+5p5=5+(5*4)+(5*4*3)+(5*4*3*2)+(5*4*3*2*1)
325 - 11 years agoHelpfull: Yes(17) No(7)
- i think answer should be 120 ie 5!
- 11 years agoHelpfull: Yes(4) No(25)
- i think 325 is correct.................
- 11 years agoHelpfull: Yes(3) No(1)
- i think ans is!5
- 11 years agoHelpfull: Yes(2) No(12)
- this question belongs to which topic?
- 10 years agoHelpfull: Yes(0) No(1)
TCS Other Question
Five rivers Ya-Fen,Volga,Yamuna,Hudson and Siene flow through the five cities v-z. New York,Paris,Moscow,Tokyo and Delhi,but not necessarily in same order.No two rivers flow in the same city and no two cities have same river flowing through them.Vogla flows through neither Moscow nor Delhi.Ya-Fen is neither in New York nor in Paris. Yamuna is neither in Delhi nor in Moscow.Hudson is in Moscow while new York has Yamuna flowing through it. Which of following is definitely FALSE?
1. If Volga flows through Tokyo,then Ya-Fen flows through Delhi.
2. If Tokyo has Volga,then Siene must flow through Delhi.
3. If Ya-Fen flows through Tokyo, then Siene must flow through Delhi.
4. Ya-Fen may flow through Tokyo or Delhi.
A series of book was published at 7 seven year intervals. When the seventh book was published the total some of publication year was 13,524. First book was published in??
Q.) Some time, work, wages questions was also there.