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Maths Puzzle
how many 4 digit numbers divisible by 5 can be formed with digits 0,1,2,3,4,5,6 and 6?
Read Solution (Total 2)
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- 390
Correcting: The digits to be 0,1,2,3,4,5,6 & 7
For 4 digit numbers,
unit's place must be 0 or 5 i.e. 2 possibilities
=> In ten's place,7 possibilities
=> In hundred's place,6 possibilities
=> In thousand's place,5 possibilities
=> 2*7*6*5 = 420 numbers
Eliminating the numbers having 0 as first digit
i.e. 6*5 = 30 numbers
=> 420 - 30 = 390 numbers - 11 years agoHelpfull: Yes(1) No(3)
- ans for this is 249 but how>>
- 11 years agoHelpfull: Yes(0) No(1)
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