top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

A 120 digit number is formed like ::123456789101112131415.... Find remainder when this number is divided by 8 ?

+1 vote
1,717 views
A 120 digit number is formed like ::123456789101112131415.... Find remainder when this number is divided by 8 ?
posted May 19, 2015 by Ankit Kamboj

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

+2 votes
 
Best answer

Number will be something like
123456....616263646

(a+b)mod n = a mod n + b mod n so
(123...616263000+646) mod 8 = 123...616263 mod 8 + 646 mod 8
1000 or any multiple of it remainder is zero so
= 0 + 646 mod 8
= 0 + 6

Hence
remainder is six

answer May 19, 2015 by Salil Agrawal
Dear Sir, the number would be like 1234..... , it has 120 terms , probably i think it may not go till 120 , i still have doubt .
Oh my bad I will correct it and will update u :)
Answer is updated please check :)
Now it is perfectly fine :)



Similar Puzzles
+1 vote

A four digit positive number, when divided by the sum of the four digit of the number given 226 as quotient and 0 as remainder. If thousand place of the number is 4 and units place is 2 then the difference of hundred place and tens place will be

0 votes

The large number (123456...424344) has been formed by concatenating the integers 1 to 44. What is the remainder when it is divided by 45?

Note: solve without calculation...

0 votes

A number when divided by 48 gives 47 as remainder and x as quotient, the same number when divided by 49 gives 8 as remainder and y as quotient. What is the minimum possible value of x?

...