Bissoy.com
Doctors Medicines MCQs Q&A

In an 800 m race, Anup took 14 seconds to complete the first 100 metres and 2 seconds more for next 100 metres and 2 seconds more than two previous time for next 100 metres and so on. How much time Anup has taken to finish the race?

In an 800 m race, Anup took 14 seconds to complete the first 100 metres and 2 seconds more for next 100 metres and 2 seconds more than two previous time for next 100 metres and so on. How much time Anup has taken to finish the race? Correct Answer 2 minutes 48 seconds

Calculation:

For the first 100 m, Anup took 14 seconds.

For the next 100 m (200 m covered), Anup took 16 seconds.

For the next 100 m (300 m covered), Anup took 18 seconds.

For the next 100 m (400 m covered), Anup took 20 seconds.

For the next 100 m (500 m covered), Anup took 22 seconds.

For the next 100 m (600 m covered), Anup took 24 seconds.

For the next 100 m (700 m covered), Anup took 26 seconds.

For the next 100 m (800 m covered), Anup took 28 seconds.

Total time taken = 14 + 16 + 18 + 20 + 22 + 24 + 26 + 28 = 168 seconds

⇒ 120 seconds + 48 seconds

⇒ 2 minutes 48 seconds

Hence, the required time is 2 minutes 48 seconds.

Related Questions

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 ?
Rakesh and Abhinay are swimmers and they participated in a swimming race in which they had to travel between two ports A and B and returned back from B to A. Rakesh took 37.5 seconds to complete the race and Abhinay took 200/3 seconds to complete the race. If the speed of Abhinay is increased by 100% then find the approximate difference between the time taken by Rakesh and Abhinay to complete the race where the speed of stream is 5m/s and the distance between two ports is 250m.
Ram beats Shyam by 200 metres in a race of 800 metres. Shyam beats Rohit by 100 metres in a race of 1000 metres race. Approximately by how many metres can Ram beats Rohit in a race of 500 metres.
A can finish a work in half the time taken by B to finish the work. The time taken by C to finish the work is equal to the total time taken by A and B together to finish the work. What is the ratio of the time taken to finish the work when A, B and C work together to that of the time taken by A working alone?
John, Jack, Joseph and Jordan participated in a running race. Only the winner finished the race in 10 minutes. Which two pieces of information can tell you who the winner was? (i) John finished the race in 16 minutes . (ii) Joseph finished the race earlier than Jack by 2 minutes. (iii) Jack finished the race later than Jordan by 4 minutes. (iv) Jordan finished the race earlier than John by 6 minutes. (v) John finished the race later than Joseph by minutes.
Given below are two quantities named A and B. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose among the possible answers. Quantity A∶ In a kilometre race, X beats Y by 150 meters. Y beats Z by 200 meters. By how much meters does X beat Z in the same race? Quantity B∶ P can finish a race in 5 minutes and Q can finish the same race in 6 minutes. By what distance P will defeat Q in a race of 2400 metre?
In the following question, two statements are numbered as Statement I and II. On solving these statements we get Quantity A and B respectively. Solve the given statements for both quantities and choose the correct option. Statement I: 5 men can finish work in 25 days. After 12 days, 2 workers have fallen sick. How much approximate time does it take to finish the work by remaining workers? Statement II: 12 men can finish a work in 28 days and 10 women can finish the same work in 30 days. What is the approximate time taken by 7 men and 5 women to finish this work?
The time taken by A and B to finish a work is 12 days. The time taken by B and C to finish double the previous work is 28 days. The ratio of the efficiencies of A and C is 3 : 1. What is the time (in days) taken by C alone to finish the work?
30 athletes participated in a 100-meter race. The time taken (in seconds) by them to complete the race is shown in the tally table. Time (in seconds) Tally marks 10 || 11 |||| 12 |||| |||| | 13 |||| | 14 |||| || How many athletes completed the race in 12 seconds?
Anup can dig a well in 10 days. but particularly in difficult time the work is such that due to fatigue every subsequent day efficiency of a worker falls by 10%.If Anup is given a task of digging one such well in the difficult time, then in how many days will he finish the work?