Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...


can you tell me the digit sum(digit sum of
1789=1+7+8+9=25=2+5=7) of p=13258*15784*32547*36587*4304
you have 3mintz to do it.



can you tell me the digit sum(digit sum of 1789=1+7+8+9=25=2+5=7) of p=13258*15784*32547*36587*4304..

Answer / anonymus

digit sum(a*b)= digit sum(digit sum(a)*digit sun(b))
(since digit sum(a * AB...Z)= digit sum(digit sum(a*A)+digit sum(a*B)+...digit sum(a*Z))
=It is easy to verify that digit sum(a*b)=digit sum(digit sum(a)+digit sum(b))(Assume a,b here as single digit number.)
=so applying this result recoursively we get, digit sum(a*b*c)=digit sum(digit sum(a)+digit sum(b)+digit sum(c)).
There fore, digit sum(p)=digit sum(digit sum(13258)+digit sum(15784)+digit sum(32547)+digit sum(36587)+digit sum(4304)))
=digit sum(digit sum(19)+digit sum(25)+digit sum(21)+digit sum(30)+digit sum(12))
=digit sum(2+7+3+3+3)
=digit sum(18)
=9
So,digit sum(p)=9.
Hence Result...

Is This Answer Correct ?    3 Yes 0 No

Post New Answer

More Mathematics Interview Questions

if n is a natural numbers, the n(n+1)(N+5) is

0 Answers   DSQ Software,


one time reffer ur books/(if ur technical students)

0 Answers   State Bank Of India SBI,


Six factorial equals what number?

0 Answers  


What is multicollinearity?

0 Answers   TNS,


Explain the relevance of knowledge of History of Mathematics

0 Answers   Mahatma Gandhi University,


if the length of the cycloid is 4 times the diameter of a rotating circle, then the area under the arch traced out by that cycloid is how many times the area of therotating circle?

0 Answers  


VOLUNTEER TRAINING FOR DISADVANTAGED IN MATHS – QUESTION 1 : 12 tens and 34 hundreds is equal to - (A) 1234, (B) 3520, (C) 3412, (D) 34120, (E) 352.

1 Answers  


A country adopted a policy requiring all couples to continue having children until they had a girl, after which they must stop having children. How many children willthe average family have and what will the sex distribution be?

0 Answers  


briefly know about ur native place?

0 Answers   State Bank Of India SBI,


please can any one tel me where can i get ASO (asistant stistical officer) meterial

3 Answers  


You have to weigh sugar from 1 Kg to 40 Kg weight in integers using pan balance. What are the 4 minimum weights required for this?

2 Answers  


Replicon company exam papers

0 Answers  


Categories