Question

The difference between the sum of two numbers and the difference of the two numbers is 6. Find the larger of the two numbers if their product is 15.
(a) 3
(b) 5
(c) 17
(d)20
(e) 23

Answer 1

call the bigger number 'a', and the smaller number 'b'.
then the statements in your question can be written as:

(a+b) - (a-b) = 6
ab = 15

Answer 2

use the first equation to find 'b'. then use that in the second equation to find 'a'

Answer 3

is it (b) 5?

Answer 4

yes - well done! :)

Answer 5

thanks

Answer 6

yw :)