Latest TCS Aptitude Question SOLUTION: 0,1,2,3 use these numbers for 4digit numbers and find the sum?

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(#M40011523) TCS question Keep an EYE

0,1,2,3 use these numbers for 4digit numbers and find the sum?

Asked In TCS Sonali (11 years ago)

Unsolved Read Solution (8)

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SAKTHI SARAVANAN.V  (11 years ago)

ans= 38664, just by forming all possibilities of 4 digit no

Is this solution Helpfull? Yes (10) | No (2)  

akshay sharma  (11 years ago)

formula is : (n-1)!*sum of digits*(1111....ntimes)

Is this solution Helpfull? Yes (7) | No (5)  

Srilatha  (8 years ago)

Process of solving
From these four digits '0' cannot be at first place to form four digit number
so we have 1, 2, or 3 can be at thousand's place
keeping one digit at thousand place can have 6 different four digit number
so that means
1000*6 + 2000* 6 + 3000* 6 = 36000

Now come to hundred's place we can have all four digit at this place , '0' will not contribute any thing to sum so in all four digits number 1,2,3 will be at 4 times on same place
so that means
100*4 + 200* 4 + 300 * 4= 2400

Now come to tenth's place ...same as hundred
so
10*4 + 20*4 + 30*4= 240

same for unit place
1*4 + 2*4 + 3*4= 24

in last if you add whole the total sum of all possible four digit number formed is 38664

Is this solution Helpfull? Yes (3) | No   

subrat bhadra  (11 years ago)

if without repetition then sum is 66660

Is this solution Helpfull? Yes (1) | No (6)  

sameer khan  (11 years ago)

256
4^4=256

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

Anitha  (11 years ago)

4!*4!*4!*4!(ways of arrangmnt)*6(total sum)
=1990656

Is this solution Helpfull? Yes (1) | No   

Anitha  (11 years ago)

1990656-24+24(for 1111,2222,3333,0000)
=1990656

Is this solution Helpfull? Yes (1) | No   

shivesh  (11 years ago)

bt how?
?????

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