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How many numbers are formed with digits 078 which are greater than 0 and less than a million?

There are 3^6 - 1 = 728 of the.


How many numbers less than a thousand have digits less than ten?

All of them. We normally count in decimal numbers and therefore all digits in decimal numbers must be less than ten.


How many digits numbers each less than 500 can be formed from the digits 13467 if repetitions is allowed?

There are 5 numbers of 1 digit, 25 numbers of 2 digits, and 75 numbers of 3 digits. This makes 105 numbers in all.


How many integers n greater than and less than 100 are there such that if the digits of n are reversed the resulting integer is n plus 9?

I'm assuming the question should read n greater than 10 and less than 100 and there are 8 numbers that satisfy this,1223344556677889So the answer is dhttp://www.webanswers.com/share-question.cfm?q=how-many-integers-n-greater-than-and-less-than-100-are-there-such-that-if-the-digits-of-n-are-the-is-1379ff| http://www.webanswers.com/answer/1566078/education/how-many-integers-n-greater-than-and-less-than-100-are-there-such-that-if-the-digits-of-n-are-the-is-1379ff| http://www.webanswers.com/report-abuse.cfm?q=how-many-integers-n-greater-than-and-less-than-100-are-there-such-that-if-the-digits-of-n-are-the-is-1379ff&p=1566078


How many numbers less than 100 have digits whose sum is 5?

10


How many prime numbers are there that are greater then 80 but less then 100?

The prime numbers that are greater than 80 and less than 100 are 83, 89, and 97.


How many numbers are greater than 76 but less than 89?

Twelve numbers exactly are greater than 76 and less than 89.


How many composite numbers are greater than 50 but less than 70?

There are 15 composite numbers greater than 50 but less than 70


How many composite numbers are greater then 20 but less then 25?

3 composite numbers, 21, 22, and 24, are greater than 20 but less than 25.


How many odd numbers less than 100 can be formed by using the digits 0 3 5 7 when repetition fo digits is not allowed?

9 odd numbers less than 100 can be formed. They are: 3,5,7,35,37,53,57,73 and 75.


How many numbers greater than 0 but less than 500?

Infinitely many.


How many composite numbers are greater then 20 and less than 25?

Three of them.