Number of ways the second grade students can sit on the first row is 5! = 5P5
Number of ways 15 first grade students can sit in the remaining 20 seats is 20P15
Therefore, required number of ways is 5P5 * 20P15. (option B)
42672. multiply 4 times 23028 and then multiply 5 times 9888 then subtract
Answer:
10
Step-by-step explanation:
7+15/5
93/150 would be the final answer
Answer:
The arithmetic average return would be 3.96%
Step-by-step explanation:
Given,
The returns in 5 years are,
-9.7%, -8.1%, 15%, 7.2%, and 15.4%
We know that,

Hence,
The arithmetic average return of the investment = 

= 3.96%