Question

6. A car travels 108 km in three hours. What is the distance covered by the car in 51/2 hours if it is travelling with the same speed?​

Answer 1

Given, 100x+50(170−x)=2

⇒100x+2(170−x)=2⇒x+240−2x=200

⇒x=140km.

∴ Distance travelled at 50 km/hr =(170−140)km=30km

Answer 2

Answer:

The distance covered by the car in 51/2 hours if it is travelling with the same speed is 918 km.

Step-by-step explanation:

A car travels 108 km in 3 hrs.

⇒ the speed of the car per hour = 108/ 3 = 36 km/hr.

⇒ here we need to discover the distance covered by the car in 51/2 hrs with the identical speed.

⇒ we know that the equation for distance = speed × time

                                 = 36 km/hr × 51/2 hrs

                                 = 36 × 51/2 km

                                 = 18 × 51 km

                                 = 918 km.

⇒ The distance covered by the car in 51/2 hours if it exists traveling with the identical speed = 918 km.

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