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(1 + 25) x 25/2 ie 425.
The sum of the first n integers is (n + 1) x n/2
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What is the sum of the first 25 multiples of 12?
The sum of the first 25 numbers is 25*26/2 = 325 So the sum of the first 25 multiples of 12 is 325*12 = 3900
What will be the sum of the first 25 prime numbers?
The sum of the first 25 prime numbers is 1,060.
The sum of a number and 4 times another number is 25?
The sum of number and four times a number is 25 write in algebraic expression
Sum of 1st 25 prime no?
The sum of the first 25 prime numbers is 1,060.
There are 25 prime numbers less than 100 is their sum even or odd?
The sum of the 25 primes less than 100 is even (it is 1060).The first prime number is 2. Every other prime number is odd.So, of the 25 primes less than 100, one is even and 24 are odd.Any two odd numbers sum to an even number. Therefore, an even number of odd numbers has an even sum. So the sum of 24 odd numbers is even.Therefore, the sum of the 25 primes less than 100 is even.
How many three digits natural numbers are divisible by 4?
The first 3 digit natural number is 100: 100 ÷ 4 = 25 → first 3 digit natural number divisible by 4 is 4 × 25 The last 3 digit natural number is 999: 999 ÷ 4 = 249 r 3 → last 3 digit natural number divisible by 4 is 4 × 249 → number of 3 digit natural numbers divisible by 4 is 249 - 25 + 1 = 225.
What is the smallest square number that is the sum of two square numbersfind two squares numbers whose sum is a square number?
25 is a square number, and the sum of 9 and 16 is 25. 9 and 16 are also square numbers.
What is the Sum for the first 5000 odd numbers?
The sum of the first 5,000 odd numbers is 25,000,000 (25 million). This is an easy calculation. Simply square the number of integers you are looking to calculate. In this case 5,000 squared = 5,000 x 5,000 = 25 million.
What number added to itself gives a sum of 50?
25 + 25 = 50
Which two numbers sum to 81 and their difference is 25?
If their difference is 25 then the larger number is the smaller number plus 25. Let the smaller number be x then the larger number is x + 25 → their sum is x + (x + 25) = 81 → 2x = 56 → x = 28 → the two numbers are 28 and 53.
The sum of five and a number is three?
-25 + (-2) = 3
What is the sum of the first 25 even numbers?
The sum of the first n positive integers (i.e. 1+2+3+...+n) is given by n(n+1)/2 so the sum of the first 25 positive integers is 1+2+3+...+25 = 25x26/2 = 325. The sum of the first 25 EVEN numbers will be double this i.e. 2+4+6+...+50 = 650.
