# A Car Takes 6 Hours to Reach a Destination by Travelling at a Speed of 50 Km per Hour. How Long Will It Take When the Car Travels at a Speed of 75 Km per Hour? - Mathematics

Sum

A car takes 6 hours to reach a destination by travelling at a speed of 50 km per hour. How long will it take when the car travels at a speed of 75 km per hour?

#### Solution

Time: Distance:: Time: Distance

6  :    50 km ::    x   :    75

∴ By inverse proportion

6 × 50 = x × 75

⇒"x"=(50xx6)/75

= 4 hours

Concept: Time and Work
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#### APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 10 Direct and Inverse Variations
Exercise 10 (B) | Q 8 | Page 123