math
posted by Judy .
What percent of the first 50 positive integers contain no odd digits?

half the ones
half the 20's,40's,60's,80's
Looks like 5+4*5 = 25
Respond to this Question
Similar Questions

arithmetic
how many threedigit integers greater than 500 contain only odd digits 
math
how do i solve the sum of the first n even positive integers is h. the cum of the first n odd positive integers is k. determine the value of hk, in terms of n 
Math
How many positive 3digit integers contain only odd digits? 
math
How many threedight integers greater than 600 contain only odd digits? 
Math concepts
How many positive odd integers between 100 and 10000 can be formed using the digits 2,3,4,5 and 6 
maths
the non decreasing sequence of odd integers {a1, a2, a3, . . .} = {1,3,3,3,5,5,5,5,5,...} each positive odd integer k appears k times. it is a fact that there are integers b, c, and d such that, for all positive integers n, añ = … 
calculus
A positive multiple of 11 is good if it does not contain any even digits in its decimal representation. (a) Find the number of good integers less than 1000. (b) Determine the largest such good integer. (c) Fix b ≥ 2 an even integer. … 
math
How many positive odd integers less than 500 can be formed from the digits 3, 4, and 5 without repetition? 
Pre Calculus 30
1.How many positive threedigit integers can be made from the digits {3,4,5,6,7} if digits may be repeated? 
Pre Calculus 30
1.How many positive integers fivedigit integers end with the digit 0?