digits

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Let N=2+22+222+...............upto 30000 terms
Then find last four digits of N

#Mathematics #Algebra

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7 Answers

1

champ ·2009-08-11 10:34:47

You are wrong.
Sorry[2]

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11

Devil ·2009-08-11 10:38:06

How come ?
Check the nas .....
Last digit = 0.
Last but 1 = 8
Last but 2 =5
Finally = 3.....

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1

champ ·2009-08-12 01:06:23

no answer is different

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1

Philip Calvert ·2009-08-12 06:31:03

i think Soumiks answer should be correct - 3580

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62

Lokesh Verma ·2009-08-13 22:47:28

the last digits will be same as

2+22+222+(2222 repeated 30000 times) - 2222-2222-2222

The last 4 digits will be same as

246-6666

= -6420

=10000-6420 = 3580

see if i have made any sillly mistake.. but i hope you get the spirit of the solution :)

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11

Devil ·2009-08-14 10:32:52

That's exactly what I've done.....Champ, check the ans once more.

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1

champ ·2009-08-14 10:59:00

This question is from TMH
answer =9580 [2]

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Your Answer

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