nazoor

 Profile Answers by nazoor 

• Jan 14th, 2008

 

Try this excel macro

Sub test()
k = 0
For i = 100000000 To 999999999

 If (i Mod 7 = 0) Then
 k = k + 1
 End If
 Next
 Cells(1, 1) = k
 
End Sub

Ans:

128571428

rasigan

 Profile Answers by rasigan 

• Jan 28th, 2008

 

9c2=72

suchintya

 Profile Answers by suchintya 

• Jun 13th, 2008

 

non of the above

suchintya

 Profile Answers by suchintya 

• Jun 13th, 2008

 

128571428 is the correct answer that i copied from the above. But i apreciate that........
Cheers

pravesh28

 Profile Answers by pravesh28 Questions by pravesh28

• Mar 28th, 2010

 

The 100000 first 9 digit number
First number divisible by 7 is 1000006 (First term)

Greatest 9 digit number is 9999999
and divisible by 7 is 9999997 (nth term)

9999997 equals 1000005+(n-1)7
Solving we get n equals 1285714