New Batches at TathaGat Delhi & Noida!               Directions to CP centre
number sys
by sumit khurana - Sunday, 6 July 2014, 10:45 PM
  What will be the sum of all the 5 digit numbers that can be formed with only odd digits 1,3,5,7,9 in following cases
1)Repetition of numbers allowed
2)Repetition of numbers not allowed?

Re: number sys
by TG Team - Monday, 7 July 2014, 11:23 AM
  Hi Sumit smile

1) 54(11111)(1+3+5+7+9)

2) 4!
(11111)(1+3+5+7+9)

Kamal Lohia
Re: number sys
by Sparkle Singh - Saturday, 25 October 2014, 10:30 PM
  Hi Kamal,

I could not get the second part of the solution. Why 4!, shouldnt it be 5!. Pls explain.

Sparkle