Can some one tell me if i am doing i right

a function 23n^2 operation for input size n.

1) how many operation per second would your computer have to do in order to complete an input size 100 in 10 minutes ?

2) Assume the computer does 50000 operation in a second. what is the largest amount of input that can be done in an hour?

Solutions

1) 10 min = 600 sec

23(100)^2 = 230,000

230,000/600 = 383 operation

2) 50,000 opr in a second = 50,000/1,000,000 = 1/20

3600/20 = 180

please help