82.5k views
1 vote
How do I evaluate and answer 7P4 and 12C5

1 Answer

5 votes

Given:

Here given is 7P4 and 12C5

Required:

Evaluate both

Step-by-step explanation:

here is the formula for P


nPr=(n!)/((n-r)!)

so now for 7P4


7P4=(7!)/((7-4)!)=(7*6*5*4*3!)/(3!)=7*6*5*4=840

now for 12C5

here is the formula for C


nCr=(n!)/(r!(n-r)!)
12C5=(12!)/(5!(12-5)!)=(12*11*10*9*8*7!)/(5!7!)=792

is for 12C5

Final Answer:

7P4=840 and 12C5=792

User LogiStack
by
9.2k points

Related questions

asked Mar 5, 2021 225k views
Pawan Dongol asked Mar 5, 2021
by Pawan Dongol
8.1k points
2 answers
1 vote
225k views
asked Apr 6, 2015 53.8k views
Paresh Mayani asked Apr 6, 2015
by Paresh Mayani
7.9k points
1 answer
3 votes
53.8k views