Michelle drove 3 hours longer than Annisa at an average speed 5 kilometers per hour faster than Annisa. Gita drove 9 hours longer than Annisa at an average speed 15 kilometers per hour faster than Annisa. If Michelle drove 50 kilometers more than Annisa, then how many more kilometers did Gita drive than Annisa?
A triangle ABC with ∠ABC=90∘, has the length of the side AB=128cm and of BC=96cm. What is the length of the perpendicular line from side AC to point B?
Angga can complete a task in 40 minutes, while Putri can complete the same task in 60 minutes. How long will it take to complete the task, if both Angga and Putri work together?
of the principal. If the numbers representing the rate of interest (in percent) and time (in years) be equal, then what is the time, for which the principal is lent out?