1.

1). 252). 353). 484). 36

Answer»

LET speed of car be x km/hr.

⇒ Speed of bus = (x - 25) km/hr

We KNOW that,

Time = Distance/Speed

According to question,

[500/(x - 25)] - (500/x) = 10

⇒ 500 × 25 = 10x(x - 25)

(x - 25)x = 50 × 25

⇒ x = 50 km/hr & x - 25 = 25 km/hr

∴ The DIFFERENCE between the speeds of the car and the bus car = 50 - 25 = 25



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