Question

plz answer above questions in photo plz fast ​

Answer 1

Answer:

10 km/h

Step-by-step explanation:

Let the speed of rickshaw and bus be x and y km/hr.

As the total distance traveled by her is 14 km.

∴ Distance traveled by bus =14− Distance traveled by rickshaw

Case I:-

She takes half an hour if she travels 2 km by rickshaw, and the remaining distance by bus.

∴  $\\\frac{2}{x} +\frac{12}{y} =\frac{1}{2}$

Case II:-

If she travels 4 km by rickshaw and the remaining distance by bus, she takes 9 minutes longer.

total time taken by her = $\frac{1}{2} + \frac{9}{60} =\frac{39}{60} h$

∴$\frac{4}{x}+ \frac{10}{y}=\frac{39}{60}$