Question

jill swam 200 meters in 2 min and 42 sec. if each lap is 50 meters long which is the most likely to be her time, in sec, per lap

Answer 1

To find Jill's time per lap, we first need to convert her total swimming time into seconds.

1. **Convert minutes and seconds to total seconds**:
- 2 minutes is equal to \(2 \times 60 = 120\) seconds.
- Adding the remaining 42 seconds:
\[
120 \text{ seconds} + 42 \text{ seconds} = 162 \text{ seconds}
\]

2. **Determine the number of laps**:
- Each lap is 50 meters long, and Jill swam a total of 200 meters.
- The number of laps is:
\[
\frac{200 \text{ meters}}{50 \text{ meters/lap}} = 4 \text{ laps}
\]

3. **Calculate the time per lap**:
- Now we can find the time per lap by dividing the total time by the number of laps:
\[
\frac{162 \text{ seconds}}{4 \text{ laps}} = 40.5 \text{ seconds/lap}
\]

Therefore, Jill's time per lap is most likely **40.5 seconds**.