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How many 4 digit numbers divisible by 5 can formed with the digit 1,2,3,4,5,6,and 6?
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- since no. should be divisible by 5 thus unit digit always be 5....
now we r left with 6 digits in which 6 is repeted thus possible number must
be 6p3/2!....=60 - 12 years agoHelpfull: Yes(26) No(6)
- since its divisible by 5b so last digit must fill with 5 so the remaining digits are 1 2 3 4 6 6 since he didn't mentioned repition's are allowe or not allowed .
if repetition is allowed we have 6*5*4**1 =120 .if repetition is not allowed we have 5*4*3*1=60 - 12 years agoHelpfull: Yes(17) No(4)
- 216 let _,_,_,_ be a number so for fourth place we have only 1 option i.e 5 and for other 3 places we have 6*6*6 options because repitition is allowed so answer is 6*6*6*1=216
- 11 years agoHelpfull: Yes(3) No(1)
- 7^3 ans is....
- 12 years agoHelpfull: Yes(2) No(14)
- is the answer 6p3..? asat unit place any 1 out of the 5 nos can be selected..?
- 12 years agoHelpfull: Yes(2) No(4)
- ans: 7*7*8
last 2 places can be filled in 8 ways-12,16,24,32,36,52,56,64
rest 2 places can be filled in 7 ways each-7*7
- 12 years agoHelpfull: Yes(1) No(15)
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