There are 20 number.
The number of the sequence is : (20-1):(2-1)+1=20(number)
There are 9 even numbers between 1 and 20
How many natural numbers between 1000 and 4000 are there for which the thousands digit equals the sum of the other three digit?
a.20 b.19 c.16 d.12
how many 2-digit even numbers are there ?
There are two even numbers whose sum is 3986 and there are 5 odd numbers between them.
a) Find the greater number. Give your answer only.
b) Find the smaller number. Give your answer only.
Choose 3 digits, without repetition, from 1, 2, 4, 6, 8 to form 3-digit even numbers. How many numbers are there ?
Please help me !
How many 2 - digit even numbers are there ?
Answer: ............. number .
Numbers are drawn from 45 integers 20 to 64. At least how many number(s) is / are
drawn at random to ensure that there are two numbers whose product is divisible by 9?
Choose 3 digits from 8, 6, 0, 5, 2 and 1 to form 3-digit numbers. How many odd numbers
are there? (The repetition of digits is not allowed)giúp me với
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How many numbers between 2021 and 9876 are divisible by all of 2,3,5,9?
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