Question

The speed of a car is 80 km/hr. After 2 hours it covered one fourth of the distance to be covered. What is the total distance to be covered ?
(a) 120 km
(b) 80 km
(c) 100 km
(d) 640 km
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Answer 1

Answer:

Total Distance to be covered = 640 km

Option D is correct.

Step-by-step explanation:

We have,

Speed = 80 km/h

Then, according to the Question,

After 2 hrs of travel distance covered = (1/4) of total distance

Let's first find how much distance he travelled in 2 hrs

We know that,

Speed = Distance/Time

Then,

Distance = Speed × Time

Distance = 80 × 2

Distance = 160 km

Thus,

He covered 160 km in 2 hrs.

But that was only (1/4)th of the total distance.

Let the total distance = D

Then, according to the Question,

After 2 hrs of travel distance covered = (1/4) of total distance

So,

160 = (1/4) of D

160 = (1/4) × D

(D/4) = 160

D = 4 × 160

D = 640 km

Hence,

Total Distance to be covered = 640 km

Option D is correct.

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