N= 70! x 69! x68!.......................................3! x2! x1! Which of the following represents the 147th digit from the right end of N? (a) 2 (b) 0 (c) 5 (d) 7
12 Comments
syntn
70 ! = 16 zeroes 69! to 65! = 15 zeroes for each 64! to 6....
3d.
syntn
70 ! = 16 zeroes 69! to 65! = 15 zeroes for each 64! to 60 ! = 14 zeroes..hence from 70 ! to 60 ! itself there are 16 +15*6 + 14*5 = 176 zeroes..hence 147th digit from right will be definitely 0
saurabh9gupta
for factors ending in 0we need to take out a pair of 2*5... and find the total no of factors - so 24for 5 i think it will be 9 as we need to remove all the pairs which make 10so it will be 2^2 * 3^2
saurabh9gupta
1)41 and 12 both are co - primePhi(12) = 12* (1/2)*(2/3) = 497 mod 4 = 1so the question boils down to - 41^1 / 12 = 5.2) phi (13) = 1243^1 divided by 13 = 4
SET7: A)Mr K Sudarshan's personality sets him apart from the rest. B)Nothing is too small for his attention. C)He has a fanatical devotion to detail. D)This is what makes him a different guy. 1)ACBD 2)ABCD 3)BCDA 4)DABC 5)BACD
A)Mr K Sudarshan's personality sets him apart from the rest. B)Nothing is too small for his attention. C)He has a fanatical devotion to detail. D)This is what makes him a different guy.
1)ACBD 2)ABCD 3)BCDA 4)DABC 5)BACD
Three Lives. Three Destinies. One Name.
CAT'12 : 95.86%ile
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There appears to be some unrest among the student community at TA Pai Management Institute, (TAPMI) Manipal, Karnataka. A couple of policies framed by the institute's management seem to have irked its students lately. While some related posts were put up by TAPMI students on the PaGalGuY forums, we also spo...
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sid1989
@laj leave it, its a dead horse. U do ur job in tryin to ....
29 Apr.
Abhirup.merch
Cant say if article is rubbish or not, but it has managed....
7d.
sid1989 @laj leave it, its a dead horse. U do ur job in tryin to get a reply from the officials, in case they refuse let ppl judge by themselves. And I dont think any author goes without his share of criticism, so @laj in some sense, u prob made it to the big league of journalists:)
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