Answer:
220
Step-by-step explanation:
Given,
The total number of people = 12,
Out of which, top 3 finishers will be recognized with the same award,
So, the total possible way = total combination of 3 people out of 12 people
Hence, there are 220 ways the top 3 racers can be grouped from the 12 people.
A=1, B=3, C=15
I think that
1(3x+3)=15
3x+3=15
3x=12
x=4
87
Smaller number = 43
Bigger number= 44
Sum = 43+44