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How many 7 digits telephone numbers are there that begin with 123 and that contain 3 or 7?
Since the numbers begin with 123, they all contain a 3. As a result, they all "contain 3 or 7". So the remaining 4 digits can be any digits and this gives 104 = 10,000 such numbers.
How many digits are there in Dubai telephone numbers?
7
How many numbers in a crore?
A crore has 7 digits.
How many whole numbers between 100 and 999 have 7 as their digits?
180
How many 4-digits numbers can you make using numbers 4 7 6 0?
There are 192.
How many 7 digits telephone numbers are there that begin with 123 and that contain 3 or 7?
Since the numbers begin with 123, they all contain a 3. As a result, they all "contain 3 or 7". So the remaining 4 digits can be any digits and this gives 104 = 10,000 such numbers.
How many digits are there in Dubai telephone numbers?
7
How many numbers in a crore?
A crore has 7 digits.
How many no of two digits are divisible by 7?
There are 13 such numbers.
How many 7 digit numbers have digits in increasing order?
36 of them.
How many three digits numbers can be formed using 3 and 7?
8.
How many whole numbers between 100 and 999 have 7 as their digits?
180
How many 4-digits numbers can you make using numbers 4 7 6 0?
There are 192.
How many 3 digit numbers can be formed using the digits 2 3 5 6 7 9 if repetition of digits is not allowed?
120 There are 6 digits in total. The numbers with 3 digits, with all digits distinct from each other, are the permutations of the 6 digits taken 3 at a time, and therefore there are 6*5*4 = 120 of them.
How many two digit whole numbers are increased by 18 when their digits are reversed?
7 two-digit numbers.
How many 4 digit numbers can you make using the digits 01 2 3 4 5 and 6 with repetition?
Answer: 2058 Explanation: Consider the thousandths place. You can place digits 1,2,3,4,5,6 (not 0 as the number would then become a 3-digit). Now consider hundredths place. You can place all the allowed digits ( ie, 0,1,2,3,4,5,6). In the same way you can place all allowed digits in tens and ones place. No. of digits which can be placed in thousandths place: 6 No. of digits which can be placed in hundredths place: 7 No. of digits which can be placed in tens place: 7 No. of digits which can be placed in ones place: 7 Total possible numbers which can be formed: 6 X 7 X 7 X 7 = 2058
Sum of all the digits from 1 to 100?
5,050
