Latest TCS Aptitude Question SOLUTION: how many zeros are there in 50!

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(#M40153498) TCS Logical Reasoning question Keep an EYE

how many zeros are there in 50!

Asked In TCS MADHUBABU (8 years ago)

Solved meghdipa manna Read Solution (7)

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Read Solution (7) :

meghdipa manna  (8 years ago) Best Solution

To find the number of trailing zeroes in 50! factorial we must find the number of integral values in :
50/5 + 50/5^2 + 50/5^3 +.........
= 10+2+0+0....
=12

Is this solution Helpfull? Yes (19) | No (4)  

payal  (8 years ago)

ans = 12
50/5=10
10/5=2
10+2=12

Is this solution Helpfull? Yes (5) | No   

Harendra A  (8 years ago)

(50/5)+(10/5)

Is this solution Helpfull? Yes (4) | No (5)  

RAJ KUMAR  (8 years ago)

by remainder theorm....(you can check in arun sharma)..
(50/5)+(50/5*5)=10+2=12

Is this solution Helpfull? Yes (3) | No   

prathyusha  (8 years ago)

5 those are 50,40.30.20,10 end of zeros

Is this solution Helpfull? Yes | No (9)  

prakash kasera  (8 years ago)

Make a equilateral triangle by segmentation of centres of all the three unit circle each side will be 2 units.now draw a circle circumscribing the equilateral triangle .let r be the radius of that circle.
Now (area of equi triangle will be =abc/4r) where a,b,c are the sides of equi tringle.get value of r and add 1 to find radius of bigger circle.

Is this solution Helpfull? Yes | No (3)  

Saunak Das  (8 years ago)

No of zeros in 50! = 50/5+50/5^2+50/5^3+....=10+2+0+0....+0=12.

Is this solution Helpfull? Yes | No (1)  

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