The time taken by the machines to execute a given task is:

A: 15 m, 20 seconds

B: 12 m, 10 seconds

C: 10 m, 45 seconds

1. What is the performance of machine B relative to machine A? Enter your numerical answers below. Enter your answers to two places after the decimal (i.e., 3.56).

2. What is the performance of machine C relative to machine A? Enter your numerical answers below. Enter your answers to two places after the decimal (i.e., 3.56).