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Logical Reasoning
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numbers are 2,2,3,3,3,4,4,4,4.how many 4digit numbers can be formed greater 3000 with help of these without any reapition?
Read Solution (Total 3)
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- 51 is answer
start with 3--- are 3*3*3=27 but in them 3333 and 3222 are not possible because we have 3 4's,2 2's, 2 3's are avilable.
so start with 3=25
start with 4---=3*3*3=27 all numbers are possible except 4222 because we have 3 4's,3 3's,2 2's for 3 places.
so start with 4=26
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so total=25+26=51 - 13 years agoHelpfull: Yes(25) No(4)
- for first place there are only 2 digits i.e. 3 & 4
for next place there are 3 digits 2 , 3 & 4
for next place there are again 3 digits i.e. 2, 3 & 4
for last place there is only 1 digit i.e. 4
so maximum no that can be formed is 2X3X3X1 = 18.
so 18 is the ans
- 13 years agoHelpfull: Yes(6) No(15)
- we have been given three distinct numbers that are 2 3 4 and we are asked to make 4 digit number and that too without repetition which is not possible
OR
4 position are to be filled
with 3 numbers (because any type of repetition is not allowed) is not possible - 7 years agoHelpfull: Yes(0) No(0)
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