GRE Exam Numerical Ability Time Distance and Speed

A train travels from station A to C having distance of 285 miles in 6 hours. During the journey, it reaches intermediate station B at the average speed of 40 miles/hr. From station B, train reaches station C at average speed of 55 miles/hr. What is the distance between the station B and C?

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GRE Other Question

Two machines S and T produce 1000 and 2000 items every day. Machine S produce 10 defective items machine T produces 40 defective items. On particular day the supervisor of the shop floor picked up an item and found it was defective. Find the probability that it came from machine S. In a basket full of balls, 60% are mangoes and remaining 40% are apple. 25% of apples are green and the rest 75% are red. Of the mangoes, 80% are red and the rest of the mangoes are green, What percentage of the green fruits are mangoes?