To solve these problems, we use the formula for
speed:
$$
\text{Speed} = \frac{\text{Distance}}{\text{Time}}
$$
We'll calculate each one step by step and round the answers to
2 decimal places.
---
a) Distance = 614 km, Time = 12 hr
$$
\text{Speed} = \frac{614}{12} = 51.17 \text{ km/hr}
$$
b) Distance = 648 miles, Time = 24 hr
$$
\text{Speed} = \frac{648}{24} = 27.00 \text{ mph}
$$
c) Distance = 825 m, Time = 32 sec
$$
\text{Speed} = \frac{825}{32} = 25.78 \text{ m/s}
$$
d) Distance = 958 m, Time = 48 sec
$$
\text{Speed} = \frac{958}{48} = 19.96 \text{ m/s}
$$
e) Distance = 1020 miles, Time = 40 hr
$$
\text{Speed} = \frac{1020}{40} = 25.50 \text{ mph}
$$
f) Distance = 258 km, Time = 12 hr
$$
\text{Speed} = \frac{258}{12} = 21.50 \text{ km/hr}
$$
g) Distance = 557 km, Time = 18 hr
$$
\text{Speed} = \frac{557}{18} = 30.94 \text{ km/hr}
$$
h) Distance = 852 m, Time = 14 sec
$$
\text{Speed} = \frac{852}{14} = 60.86 \text{ m/s}
$$
i) Distance = 635.5 km, Time = 13 hr
$$
\text{Speed} = \frac{635.5}{13} = 48.88 \text{ km/hr}
$$
j) Distance = 628 miles, Time = 11 hr
$$
\text{Speed} = \frac{628}{11} = 57.09 \text{ mph}
$$
k) Distance = 528 m, Time = 27 sec
$$
\text{Speed} = \frac{528}{27} = 19.56 \text{ m/s}
$$
l) Distance = 985 km, Time = 30 hr
$$
\text{Speed} = \frac{985}{30} = 32.83 \text{ km/hr}
$$
m) Distance = 867 miles, Time = 56 hr
$$
\text{Speed} = \frac{867}{56} = 15.48 \text{ mph}
$$
n) Distance = 1125 km, Time = 25 hr
$$
\text{Speed} = \frac{1125}{25} = 45.00 \text{ km/hr}
$$
---
✔ Final Answers (Rounded to 2 Decimal Places):
| Problem | Speed |
|--------|-------|
| a) | 51.17 km/hr |
| b) | 27.00 mph |
| c) | 25.78 m/s |
| d) | 19.96 m/s |
| e) | 25.50 mph |
| f) | 21.50 km/hr |
| g) | 30.94 km/hr |
| h) | 60.86 m/s |
| i) | 48.88 km/hr |
| j) | 57.09 mph |
| k) | 19.56 m/s |
| l) | 32.83 km/hr |
| m) | 15.48 mph |
| n) | 45.00 km/hr |
Let me know if you'd like this in a printable format or with units explained further!
Parent Tip: Review the logic above to help your child master the concept of speed worksheet.
