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# What is the tens digit of the sum of the forty numbers such

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Senior Manager
Joined: 10 Dec 2004
Posts: 274

Kudos [?]: 200 [0], given: 0

What is the tens digit of the sum of the forty numbers such [#permalink]

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13 Jan 2005, 15:50
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

What is the tens digit of the sum of the forty numbers such that 1, 11, 111, 1111, ...?
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Kudos [?]: 200 [0], given: 0

Director
Joined: 07 Jun 2004
Posts: 610

Kudos [?]: 921 [0], given: 22

Location: PA

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13 Jan 2005, 17:02
while tens will add up to 39 as the first digit hasno tens it will be

4+ 39 = 43

Kudos [?]: 921 [0], given: 22

VP
Joined: 18 Nov 2004
Posts: 1431

Kudos [?]: 44 [0], given: 0

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13 Jan 2005, 18:02
3 same logic as above.

Kudos [?]: 44 [0], given: 0

13 Jan 2005, 18:02
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