GRE Exam Numerical Ability Time Distance and Speed

After travelling 30km i found that 2/5 of the journey is still left. what is the total distance of the jounrney

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GRE Other Question

A train 180 m long is running at a speed of 90 kmph. How long will it take to pass railway signal A train runs at the speed of 36kmph how many meters will it cover in 3 min