Question

Speed of boat in still water is 15 km/hr it goes 30 km

Answer 1

Answer:

It will take 2 hrs to reach 30 km.

Answer 2

hi

buddy ✌️✌️✌️✌️

❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️

Let speed of stream = x km/h

∴ Downstream speed = (15+x) km/h

∴ Upstream speed = (15-x) km/h

∴ 30/(15+x) + 30/(15-x) = 4 1/2

→ 900/225-x² = 9/2

→ 9x² = 225

→ x² = 25

→ x = 5

∴ Speed of stream = 5 km/h

❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️

Brain list pls❤️❤️❤️

@toshika

#follow me#