Here is a list of numbers -45,-21,-16,12 33 ,40. write down two numbers from the list below that have a difference of 29, work out the sum of all numbers in the list.

a) we want two numbers where the difference of them is equal to 29. Where the difference between the numbers a and b is = a - b

You can use brute force here, this is, try for every option and find the correct one.

-45 - (-21) = -45 + 21 = -24, that pair is not the correct option

-45 - (-16) = -45 + 16 = -29, well, here we find that the difference between these two numbers is 29 units, so the correct option here is -45 and - 16.

b) The summ of all the numbers in the list is:

S = -45 +(-21) + (-16) +12 +33 +40 = 3

So the total sum of the numbers in the list is 3

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