Find the number of 0's in 15*32*25*22*40*75*98*112*125

a. 7
b. 12
c. 14
d. 9

• the number of zeros in the given expression is 9 because number of zeroes depends on how many pairs of (5*2) exists.On expanding the above expression
  (5*3)*(2*2*2*2*2)*(5*5)*(11*2)*(2*2*2*5)*(5*5*3)*(7*7*2)*(56*2)*(5*5*5).
  A total of 9 pairs exist.Hence,number of zeroes is 9.
• 10 years agoHelpfull: Yes(32) No(0)
• Ans : 9
  As 5*2 gives 10 . we can get the no of '0' by multiply 5*2 .
  // So I will find out the no of 5 and 2 in this Expression .
  (5*3)*(2*2*2*2*2)*(5*5)*(11*2)*(2*2*2*5)*(5*5*3)*(7*7*2)*(2*2*2*7*2)*(5*5*5).
  = (5*3)*(2^5)*(5^2)*(11*2)*(2^3*5)*(5^2*3)*(7^2*2)*(2^4*7)*(5^3)
  = Total no of 5 is 9 = 5^9 and Total no of 2 is 14 = 2^14
  =minimum of (9,14)
  =9
  So Ans : 9
• 10 years agoHelpfull: Yes(7) No(1)
• the ans is 9
• 10 years agoHelpfull: Yes(3) No(0)
• number of zeroes is depends on number of 5's
  So,here we get nine 5's
  So,answer is 9
• 10 years agoHelpfull: Yes(1) No(1)
• it depends on how many pairs of (5*2) exists in expression there are 9 such pairs ans =9
• 10 years agoHelpfull: Yes(1) No(0)
• ans is d)9
• 9 years agoHelpfull: Yes(1) No(1)
• no of 5 is 12 ..so the no of 2 s is 12
  
• 10 years agoHelpfull: Yes(0) No(1)
• answer is 9
• 10 years agoHelpfull: Yes(0) No(0)
• 9 is the ans
• 10 years agoHelpfull: Yes(0) No(0)
• there is nine 5's
  ans-9
  
• 10 years agoHelpfull: Yes(0) No(0)
• 9 zeroes
  since number of fives are 9 in the series and 5 * even no. is a zero.
• 9 years agoHelpfull: Yes(0) No(0)