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How many 4 digits numbers can be formed from the integer 0-9?

a. if the number must be odd and between 4,200 and 6,800(inclusive) without repetition digits

b. the number must be even and less than 7,200 without repetition digits

2007-01-23 20:17:06 · 2 answers · asked by zaztie sy 1 in Science & Mathematics Mathematics

2 answers

You've already asked this twice.

2007-01-23 20:29:00 · answer #1 · answered by dukefenton 7 · 0 0

for ur fitrst question...........9999 nos can be made

2007-01-23 20:36:36 · answer #2 · answered by kirti u 2 · 0 0

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