Latest TCS Aptitude Question SOLUTION: how many no.s are form from number 1,2,3,4,5.(include all digit no.s)

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how many no.s are form from number 1,2,3,4,5.(include all digit no.s)

Asked In TCS ashish (11 years ago)

Solved Santanu Ganguly Read Solution (11)

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Read Solution (11) :

seetha  (11 years ago)

its asked how many numbers in total jus not 5 digit numbers
1 digiit numbers 5
2digit numbers 5*4= 20
3 digit numbers 5*4*3 = 60
4 digit numbers 5*4*3*2 = 120
5 digit numbers 5*4*3*2*1 = 120
so total 325

note: when reptition is not allowed

Is this solution Helpfull? Yes (30) | No (2)  

Abhishek Kumar  (11 years ago)

no's formed=(5^5+5^4+5^3+5^2+5^1)= 3905 ans.

Is this solution Helpfull? Yes (23) | No (14)  

Santanu Ganguly  (11 years ago)

5!=120

total no.s can be formed with 1,2,3,4,5 is 5!=120

Is this solution Helpfull? Yes (18) | No (11)  

Anand Prakash  (11 years ago)

no of ways of 1 digit can formed=5
no of ways of 2 digit can formed=5*5
no of ways of 3 digit can formed=5*5*5
no of ways of 4 digit can formed=5*5*5*5
no of ways of 5 digit can formed=5*5*5*5*5
total possible no of ways of 5 digit no's can be formed is=5+5^2+5^3+5^4=5^5

Is this solution Helpfull? Yes (7) | No   

ira upadhyay  (11 years ago)

5*4*3*2*1=120 it includes all d digits frm 1 to 5;

Is this solution Helpfull? Yes (3) | No (4)  

Mahesh upraity  (11 years ago)

5+5^2+5^3+5^4+5^5
if repitation is allowed
if not than
5+5p2+5p3+5p4+5p5

Is this solution Helpfull? Yes (3) | No   

anup kumar  (11 years ago)

5!+5p4+5p3+5P2+5p1

Is this solution Helpfull? Yes (2) | No (1)  

Lakshmi Kundu  (11 years ago)

Sorry dude its not right.....bcz it has said in qstn that "including all digit no", means number should be of 5 digit....so answer is 5^5.

Is this solution Helpfull? Yes (1) | No (3)  

Suresh kumar shaw  (11 years ago)

5^5.
there are 5 places which we have to fill and also we have 5 option.so we can form the number in 5^5 ways

Is this solution Helpfull? Yes (1) | No   

G R Jhansi  (10 years ago)

for 1 digit numbers==> 5^1=5
for 2 digit numbers==> 5^2=25
for 3 digit numbers==> 5^3=125
for 4 digit numbers==> 5^4=625
for 5 digit numbers==> 5^5=3125

total number of numbers are = 5+25+125+625+1325 = 3905

Is this solution Helpfull? Yes (1) | No   

Raviranjan Pandey  (11 years ago)

hey abhishek is it your right solution? if you will include all digit!!!your solution is wrong.

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