Anaya has to reach Hyderabad, which is 574 km away, in 18 hours. Her starting speed for 11 hours was 36 km/hr. For the next 136 km, her speed was 34 km/hr. At what speed must she travel now to reach Hyderabad within the decided total time of 18 hours?

Ramesh covers 56 part of the total distance by bus and the remaining 36 km by car. What is the total distance of his journey?

A person covers a distance of L km in 12 hours. If he increases his speed by 10 m/s, he covers the same distance in 8 hours. Which of the following statements is/are correct? I. The value of L is 760 km. II. The original speed of the person is 72 km/h.