Question

Srilatha drives for her office conference in the next town at 50 km/h and reaches on time. Had she travelled at 60 km/h she would have been 50 minutes early. How far is the place of conference?

Answer 1

Answer:

Let the distance between to office from her home = x km.

Time taken to reaching the office @ 40km/hrs = x/40. hrs

Time taken to reaching the office @ 60km/hrs = x/60 hrs. Acordingly:-

x/40–5/60= x/60 +10/60

or. x/40-x/60=10/60+5/60.

or. x/120=1/4

or. x=120/4 = 30 kms. Answer.

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