671 views
2 votes
2 votes

I applied the formula for onto function and got 36. How are they getting 360?

1 Answer

Best answer
1 votes
1 votes

Totally 4 rings and 3 fingers 

Each ring can be worn to any of the 3 fingers 

Hence there are 34

selected by

Related questions

1 votes
1 votes
0 answers
2
Pineapple asked Mar 23, 2023
259 views
How many ways are there to distribute five distinguishable objects into three indistinguishable boxes?
5 votes
5 votes
1 answer
4
dd asked Jun 8, 2020
1,177 views
How many pairs $(x,y)$ such that $x+y <= k$, where x y and k are integers and $x,y>=0, k 0$.Solve by summation rules.Solve by combinatorial argument.