Question

lily swims a 100-meter race. she swims the first half in 27.8 seconds. she swims the second half in 30.12 seconds. how long does it take lily to swim the whole race?

Answer 1

It takes Lily 57.92 seconds to swim the entire race.

Answer 2

we know that

1) Lily swims a $100$-meter race

2) She swims the first half in $27.8$ seconds

3) She swims the second half in $30.12$ seconds

so

To find the total time to swim the whole race sum the time in the first half plus the time in second half

$(27.8+30.12)=57.92\ seconds$

therefore

the answer is

$57.92\ seconds$