Find the number of zeroes in the expression 15*32*25*22*40*75898*112*125.

options are
7/12/14/9

• a) 7
  To find number of zeros in particular no. just find the factors of that no. and count the occurrences of 5 that'll be the no of zeroes..
  so here..
  in the expression 15*32*25*22*40*75898*112*125.
  15=3x5
  32=2x2x2x2x2
  25=5x5
  22=2x11
  40=2x40
  75898=2x37949 (You will not get any 5 in this no so leave it..)
  112=2x2x2x2x7
  125=5x5x5
  here the occurrence of 5 is=7 so no of zeros is 7 only !
  
• 8 years agoHelpfull: Yes(19) No(6)
• Ans: (d) 9
• 8 years agoHelpfull: Yes(9) No(2)
• 15*32*25*40*75*98*112*125
  
  15 - one 5
  32 - five 2s
  25 - two 5s
  40 - three 2s and one 5
  75 - one 3 and two 5s
  98 - one 2 and two 7s
  112 - four 2s and one 7
  125 - three 5s
  In total: thirteen 2s and nine 5s.
  soooo 9 is correct
• 8 years agoHelpfull: Yes(4) No(1)
• ans: 7
  15= 5*3 ( one 5 )
  25= 5*5 (two 5 )
  similarly 40 has 1, 125 has 3
  count of number of 5s= 1+2+1+3=7
  
  
• 8 years agoHelpfull: Yes(3) No(2)
• Ans will be 9...when u will multiply u will find there is 7 zeros at end while 2 in b/w...hence total 9
• 8 years agoHelpfull: Yes(1) No(1)
• if question is 15*32*25*40*75*98*112*125
  then no. of zero is 9
  if question is 15*32*25*22*40*75898*112*125
  then no. of zero is 7
• 8 years agoHelpfull: Yes(1) No(0)
• ans:- (a) 7
• 8 years agoHelpfull: Yes(0) No(1)
• Ans is a)7 hints count number of 5
• 8 years agoHelpfull: Yes(0) No(0)