ANSWER
1001
EXPLANATION
The sum of the first n - natural numbers is

The sum of the first 1000 terms is



The sum of the first 1001 terms is



The difference is

Hello it’s 25degree brother here’s the solution
Step-by-step explanation:
Ratios can be written as:
a to b
a:b
a/b
We want to find boys to girls, and there are 24 boys and 12 girls. So, we can write it as
24 to 12
24:12
24:2
All of these can be reduced, since both the numerator and denominator can be divided by 12.
Numerator: 24/12=2
Denominator: 12/12=1
2 to 1
2:1
2/1
According to what you are doing you can reverse the formula