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Raghu Surat SVNIT Grade: Upto college level
`        Q.  How many 6-digit numbers are there, in which the sum of the digits is even?`
7 years ago

Mayank Jain
37 Points
```										Dear Raghu,
Total no of 6 digit numbers possible = 9x10x10x10x10x10=9 x 105 ( excludign those starting with 0 and when the repetition of digits is allowed)
now 1st no is 100000....teh sum of the digits for this no is 1 which is odd
next no is 100001....the sum of the digits is 2 which is even
........
this series will go on till 999999
so the required no of 6 digited numbers will be 1/2 of 9 x 105 = 4.5 x 105 = 45 x 104 numbers..

Ashray Jain
HOMI BATCH
```
7 years ago
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