A three digit number is such dat (eg 2*3*4=24).how many three digit number are possible which saties this.
A)22
B)18)
c)15

• 21
  
  as we have to get 24 by multiplication of unit , tens and hundredth digits .
  so if 1 is at 100th place then we have 146,164,138,183 only
  put 2 at 100th place - 226,262,234,243
  3 at 100th place - 324,342,318,381
  4 at 100th place - 416,461,423,432
  6 at 100th place - 614,641,622
  8 at 100th place - 813,831 .
  which is total 21 .
• 11 years agoHelpfull: Yes(49) No(2)
• Answer is 21.....
  24 number is multiple of 3 digit
  combinations:
  2*3*4=24 combination=3!=6
  6*2*2=24 combination=3!/2!=3
  1*4*6=24 combination=3!=6
  1*8*3=24 combination=3!=6
  now sum of combonation=3+6+6+6=21
  so Ans is 21.........
  
  
  
• 10 years agoHelpfull: Yes(8) No(0)
• factors of 24= 1,2,2,3
  now we have to form 3 digit numbers whose sum of the digits must be equal to 24.
  those numbers would be 423,813,614, 226. now the first three numbers can be arranged in 6 ways and the last number(226) can be arranged in 3 ways as it contains two identical number.
  so total arrangement would be 6*3+3= 21(ans)
• 11 years agoHelpfull: Yes(6) No(2)
• 21 is the correct answer,Mani has done one mistake in i,e 2*2*6 can not be arranged in 6 ways. since there is repetition of 2 thats why it can only be arranged in 3!/2! = 3.
  So 6+6+6+3 = 21.
• 11 years agoHelpfull: Yes(5) No(0)
• 24 can be made by 1*3*8=24, 3*2*4=24, 1*6*4=24, 2*2*6=24, and each can be arranged in 6 ways so 6*4=24.. so 24 possible number can be there.
• 11 years agoHelpfull: Yes(4) No(4)
• can u explain ?
• 11 years agoHelpfull: Yes(1) No(0)
• Ans. is 21
• 11 years agoHelpfull: Yes(0) No(0)
• ya 21 is the right answr .jaldi jaldi mein galat kar diya maine
• 11 years agoHelpfull: Yes(0) No(0)
• what abt 1*4*9=36.it also came in elitmus
• 10 years agoHelpfull: Yes(0) No(0)
• @ravi for 36.. 18 is the right answer? m i correct?
• 10 years agoHelpfull: Yes(0) No(1)
• 1*3*5=15 (arranged in 6 ways)
  1*6*2=12 arraged 6 ways
  2*3*4=24(arranged in 6 ways)
  3*2*6=36 .............. so ans is 24 or more option d none of the above
• 10 years agoHelpfull: Yes(0) No(6)