Answer:
First set is 3,4 and 5
Second set is 1,2 and 3
Explanation:
Assume that the smallest number is n.
Since the three numbers are consecutive, this means that the other two numbers would be n+1 and n+2
Now, we know that the product of the larger two numbers is 1 less tan than 7 times the smallest.
This means that:
(n+1)(n+2) = 7n - 1 .........> equation used to find the sets
n² + 2n + n + 2 = 7n - 1
n² + 3n + 2 = 7n - 1
n² + 3n + 2 - 7n + 1 = 0
n² - 4n + 3 = 0
(n-3)(n-1) = 0
This means that:
either n-3=0 ..........> n = 3
or n-1=0 ..........> n = 1
At n = 3:
The three numbers would be 3,4 and 5
At n = 1:
The three numbers would be 1,2 and 3
Hope this helps :)