IGCSE maths
ฝัง
- เผยแพร่เมื่อ 27 พ.ย. 2024
- The car completes a 200 km journey with an average speed of x km/h.
The car completes a return journey of 200km/h .
(i) Show that the difference between the time taken for each of the two journey is 2000/ x (x+10) h
(ii) Find the difference between the time taken for each of the two journey when x= 80 .
