Question

If n = 15 30 45 60 1500, what will be the number of zeros at the end of n?

Answer 1

Answer:

50 Zeroes at end

Step-by-step explanation:

15   30    45     60   ........................................ 1500

= 15 *  ( 1    , 2   ,  3   ,  4   ,   ............................ , 100)

Every Even number multiplier  will give zero at End

50  Zeros

There will be 50 Zeroes at end

if we count all Ending zeroes

then 300 , 600 , 900 , 1200 & 1500  Have 1 additional zeroes

5 Zeroes more

Then total 55

if we count all zeroes

then 105  , 405  , 705  , 1005 , 1305  

5 Zeroes  (  only one zero counted from 1005)

1005 , 1020 , 1035 , 1050 , 1065 , 1080 , 1095

7 Zeroes    (  only one zero counted from 1005)

55 + 12 = 67

Total 67 Zeroes