Question

Lily swims a 100meter race she swims the first half 27.8 she swims the second half in 30.12 seconds how much longer does it take her to swim the second half on the race than the first half

Answer 1

2.32 seconds.

Explanation:

We have been given that Lily swims a 100 meter race. She swims the first half 27.8 seconds and she swims the second half in 30.12 seconds.

To find how much longer it took Lily to swim the second half on the race than the first half, we need to subtract the time taken by Lily on first half from the time taken by Lily on second half.

`\text{Difference of time}=30.12\text{ seconds}-\text{27.8 seconds}`

`\text{Difference of time}=2.32\text{ seconds}`

Therefore, it took Lily 2.32 seconds more to swim the second half on the race than the first half.

Answer 2

Answer: 2.32 seconds.

Explanation:

Knowing that:

• Lily swims the first half of the 100 meters race in 27.8 seconds.
• Lily swims the second half of the 100 meters race in 30.12 seconds.

You can calculate how much longer it takes to her to swim the second half than the first half, by subtracting 30.12 seconds and 27.8 seconds.

Then:

`30.12\ seconds-27.8\ seconds=2.32\ seconds`

Therefore, it took her 2.32 seconds longer to swim the second half on the race than the first half.