Question

Comprehension

Direction: Study the given data carefully and answer the following question.

There are 3 cars A, B and C. They can travel some distance with different speed.

Car A: It travels some distance which is \(33\frac{1}{3}\% \) more than the distance travelled by Car B.

Car B: It travels at speed of 50 km/hr for \(7\frac{1}{2}\) hours.

Car C: It goes a distance of 400 km at 20% less speed than Car B.

1. 8 hours
2. 10 hours
3. 11 hours
4. 9 hours
5. 12 hours

Answer 1

Correct Answer - Option 2 : 10 hours

Given:

Car A travels some distance which \(33\frac{1}{3}\% \) more than the distance travelled by Car B.

Car B travels at speed of 50 km/hr for \(7\frac{1}{2}\) hours.

Car C travels a distance of 400 km at 20% less speed than Car B.

The Car A takes 8 hours to travel the distance.

Concept Used:

Distance = Speed × Time 

Calculation:

Car B travels at speed of 50 km/hr for \(7\frac{1}{2}\) hours.

Car C speed is 20% less than Car B.

The speed of Car C = (100 - 20)/100 × 50 = 40 km/hr

Car C travels a distance of 400 km.

The time taken by Car C = 400/40 = 10 hours

∴ The time taken by Car C is 10 hours.