Question

sum of first 50 even numbers?

sum of first 50 prime numbers?

Answer 1

First 10 even numbers are:

2, 4, 6, 8, 10, 12, 14, 16, 18 and 20.

Now, sum of first 10 even numbers = 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20 = 110

In the same manner you can find the sum of all 50 even numbers by writing the next 40 even numbers after the number 20 and adding them.

Similarly, first 10 prime numbers are:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29

Now, sum of first 10 prime numbers = 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 = 129

In the same manner you can find the sum of first 50 prime numbers.

Try finding it yourself and if you face any difficulty then do get back to us.