Question

Ajay is on the swim team. He improved his time on

the 50-yard freestyle from 32 seconds to 31 seconds.
What's the percent decrease in his time?

Answer 1

5%

Explanation

50/32= 1.56yard per second ; 50/31= 1.61 yard per second

1.61-1.56= 0.05* 100= 5%