Question

2. if 5P↓r, = 60, then the value of r is​

Answer 1

Answer:

So sorry patta nahi eska answer

Answer 2

Answer:

r = 3

Step-by-step explanation:

⁵Pr = 60

=> 5! / (5-r)! = 60

=> 120 / (5-r)! = 60

=> (5-r)! = 120/60

=> (5-r)! = 2

=> (5-r) × 1 = 2 [since 2! (i.e., 2×1) = 2]

=> 5-r = 2

=> r = 5-2

Therefore, r = 3