Factors of natural number 24.

Find the mean of first n natural numbers .

Taking the set of natural numbers as the universal set, write down the complements of the following sets: { x : x is an even natural number}

Taking the set of natural numbers as the universal set, write down the complements of the following sets: { x : x is an odd natural number }

The sum of n natural numbers is 325. find n.

The difference of squares of two natural numbers is 84. The square of the larger number is 25 times the smaller number. Find the numbers.

Find the sum of first n odd natural numbers.

Find the sum of: (i) the first 1000 natural numbers, (ii) the first n natural numbers.

Statement 1 The difference between the sum of the first 100 even natural numbers and the sum of the first 100 odd natural numbers is 100. Statement 2 The difference between the sum of the first n even natural numbers and sum of the first n odd natural numbers is n.

Find the total number of proper factors of the number 35700. Also find 01)sum of all these factors 02)sum of the odd proper divisors

The sum of n natural numbers is 325 . Find n.