QUESTION 5 5.1 It takes 7 gardeners 8 hours to plant 1680 seedlings on a plece of land. Calculate (in hours and minutes) how long it would take 12 gardeners to plant the same seedlings. \( \qquad \) \( \qquad \) \( \qquad \) (2) 52 A car travelling at a constant speed travels 30 km in 15 minutes. How far will it travel in 2 hours 12 minutes if it continues at the same constant speed? \( \qquad \) \( \qquad \) \( \qquad \) \( \qquad \) 5.3 R600 is invested for 3 years at 5\% p.a. Find the simple interest earned.

If you're curious about gardening labor, here's a fun fact: the ancient Romans used to have specialized teams for planting various crops, often employing over a dozen workers for large fields. They didn’t have the luxury of modern machinery, so teamwork made all the difference! With around 1,680 seedlings to plant, you can imagine how they relied on coordination to maximize efficiency. Speaking of constant speed in cars, did you know that the world's fastest production car can go from 0 to 60 mph in under two seconds? Just like your car maintaining a steady speed for that distance, these incredible machines demonstrate the importance of reliable performance and engineering. So, whether you're gardening or racing, teamwork and speed are keys to success!