4,44,444,4444. Something like this.

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4,44,444,4444. Something like this...

Answer / chirag

20. The set X consists of the following terms : {4,44,444,4444,.....), where the nth term has n 4's in it for example 10th term is 4444444444. what is the hundreds digit of the sum of the first 45 terms of set S?

A. 5
B. 3
C. 1
D. 6
E. 9


Reason 45*4=180, thus the units digit will be 0 and 18 will be carried over to the tens digit;
44*4+18=194, thus the tens digit will be 4 and 19 will be carried over to the hundreds digit;
43*4+19=191, thus the hundreds digit is 1.

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4,44,444,4444. Something like this...

Answer / akash

4+44+444+4444+...there are 9 term in series what is the term in its tens place

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4,44,444,4444. Something like this...

Answer / nikita magar

4/81(10^(n+1)-9n-n)

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4,44,444,4444. Something like this...

Answer / supriya

6

Is This Answer Correct ?    1 Yes 2 No

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