Question

When half the positive difference between the 13th and 23rd natural numbers is added to the 34th even natural number, what is the result? (The natural numbers are 1, 2, 3, 4, ...)

Answer 1

23-13=10
half is 5
34th even natural no is 68
and add 5 will give
73

Answer 2

Natural numbers are 1,2,3 and so on. 13th and 23rd natural numbers are 13 an 23. Half the positive difference between 13th and 23rd natural numbers = (23-13)/2 = 5.  
34th even natural number = 68 
When half the positive difference between 13th and 23rd natural number added to 34th even natural number, result will be = 5+68 = 73.