Bissoy.com
Doctors Medicines MCQs Q&A

Rashmi started a journey of 480 km by car. She wants to complete the journey as soon as possible for that she wants to maintain the speed of the car at 80 kmph. She maintains the speed for 62.5% of distance and after that, she took a break for 30 mins. and then starts the journey with 60 kmph. What is the difference between the actual time taken and the planned time for the entire journey?

Rashmi started a journey of 480 km by car. She wants to complete the journey as soon as possible for that she wants to maintain the speed of the car at 80 kmph. She maintains the speed for 62.5% of distance and after that, she took a break for 30 mins. and then starts the journey with 60 kmph. What is the difference between the actual time taken and the planned time for the entire journey? Correct Answer 75 min

GIVEN :

Total journey distance = 480 km

Ideal average speed = 80 kmph

Planned or time taken in ideal condition = 480/80 = 6 hour = 360 minutes

 

CALCULATION :

For actual time,

Distance in which average speed of 80 kmph is maintained.

Distance covered before break = 62.5% of 480 = (5/8) × 480 = 300 km

Time taken to cover this distance = 300/80 = 3.75 hour = 225 minutes

After the break,

Distance need to be covered = 480 - 300 = 180 km

Time required to cover the distance = 180/60 = 3 hour = 180 minutes

Actual time of journey = 225 + 180 + 30 = 435 minutes

∴ Difference in time = 435 - 360 = 75 min

 

Related Questions

Each of the question below consists of a question and three statements number I, II and III given below it. You have to decide whether the data provided in the statement are sufficient to answer the question. If the bus is travelling from Surat to Ahmadabad and a car is travelling from Ahmadabad to Surat, then what is the distance between Surat and Ahmadabad? I. The speed of a car is 40% less than the speed of bus. Bus started at 9 am and car started at 10 am and they meet at 3 pm of the same day. II. After travelling for 1 hour, because of traffic average speed of bus is decreased by 20% and covers distance between Surat to Ahmadabad in 11 hours. Original speed of car is 20% less than original speed of bus and before crossing bus it covered 200 km if starts 1 hour later than bus. After crossing car, bus covers remaining distance in 5 hours. III. Speed of bus is 10 km/hr more than the speed of car and before crossing car ratio of distances covered bus and car in same time was 5 : 4. Time taken by car to cover the distance between Ahmadabad and Surat is 2 hours 15 minutes more than time taken by bus to cover the same distance.
The question below is followed by three statements I, II, and III. You have to determine whether the data given is sufficient for answering the question. You should use the data and your knowledge of mathematics to choose the best possible answer. A car travels from city P to city Q in T hours with a speed of v km per hour. Distance between cities P and Q is D kilometers. If it increases its speed by 5 kmph it saves some time. Find the actual speed of the car. Statement I: If the car travels from P to Q with its actual speed of v kmph and come back with the speed of v + 5 kmph in 2T – 0.6 hrs Statement II: A bus start form Q at the same time when the car starts from P and the speed of the bus is 50% more than the speed of the car and the bus meets car after covering 60% of the distance Statement III: Distance between PQ is given by D2 – 25D + 200 = 0  
Three cars start from point A together and reach point B at equal intervals. Second car whose sped is less than third car but more than first car taken a u turn and starts its journey towards A whereas third car heads for point C which is 100 km away from point B. First car and third car meet each other at mid way of A and C after third car takes u turn from C. First car travels half the distance between A and B when second reaches B. The sum of speed of second car and third car is 100 kmh.  What is the difference between speed of third car and first car?
Directions: Four friends Raghu, Rajesh, Ramesh and Ravi complete their Graduation in different number of years. The one who took maximum time took eight years to complete his Graduation while the one who took least time took only three years to complete it.Ravi took more time only than Raghu and completed his Graduation in five years. Ramesh did not take longer time
than Rajesh to complete his Graduation. Question: Who took more years to complete his graduation among all ?
Three taps x, y and z are can fill an empty tank in 20 mins, 30 mins and 40 mins, If all taps are opened and tap y and z got closed after 6 mins then total what time take to fill the tank?
Praneet started his journey at 2:45:46 p.m. and reached the destination at 4:55:57 p.m. Anit started the journey 58 mins 40 secs after Praneet and reached his destination 50 mins 29 secs after him. How long did Anit take to complete his journey?
Praneet started his journey at 2:45:46 p.m. and reached the destination at 4:55:57 p.m. Anit started the journey 58 mins 40 secs after Praneet and reached his destination 50 mins 29 secs after him. How long did Anit take to complete his journey?
Study the following questions carefully and answer accordingly. Quantity - I) If the time taken by a boat to cover the same distance in upstream is 2 hours more than downstream. The downstream speed of the boat and the speed of current is 16 kmph and 4 kmph then find the total distance travelled by the boat? Quantity - II) If the time taken by the boat in upstream and in downstream is 16 hours and 10 hours to cover the same distance. Then find the speed of boat in still water is how much percent of the speed of stream? Quantity – III) If the length of rectangle is twice of its breadth and 3 times more than the side of square and the difference between the side of square and length of rectangle is 15 cm then find the area of rectangle ?
Rashmi can either walk at a speed of 5 km/hr. or cycle at a speed of 10 km/hr. To cover a distance of 70 km, Rashmi takes 10 hours. How much of the distance, in kilometers, did Rashmi cover of foot?
Mohan traveled five cities (A, B, C, D and E) starting from home by a car which has a mileage such that the car can travel 10 km in 1 liter petrol. Distance between city A and B is twice the distance between home to city A. Distance between city B and C is thrice the distance between home to city A. Distance between city C and D is 100. Distance between city D and E is 1.5 times than the distance between B and C. Average distance traveled by Mohan was 41 km between five cities. Find how much petrol was needed by Mohan to travel from city B to D.