Question
Traveling from point 'I' to point 'J' takes 9 hours less
at a speed of 72 km/h compared to traveling at 36 km/h. If 70% of the distance is traveled at 63 km/h and the rest at 28 km/h, calculate the total time taken.Solution
Let the distance between points 'A' and 'B' = d km Then, according to the question, (d/36) - (d/72) = 9 Or {(2d - d)/72} = 9 Or d/72 = 9 So, d = 648 And so, 70% of the distance from 'A' and to 'B' = 648 X 0.7 = 453.6 km Remaining distance = 648 – 453.6 = 194.4 km So, time taken = (453.6 ÷ 63) + (194.6 ÷ 28) = 7.2 + 6.9 = 14.1 hours
Which element is structural part of hemoglobin of our blood ?
Which of the following statements is/are correct in regards to Champaran Satyagraha?
1. It was the first popular satyagraha movement
In an examination, it is required to get 300 marks to pass. A student gets 225 marks and is declared fail by 10% marks. What are the maximum marks of th...
In the following question, select the odd number from the given alternatives.
Which are primarycolours?
According to the Industrial Employment (Standing Orders) Act 1946, which of the following acts on the part of workers will not be considered as miscondu...
Which of the following statement is/are correct about “VV Giri”?
I. Giri was a founding member of the All-India Railwayme...
Which of the following is NOT a biotic component of the ecosystem?
Which type of bond is formed when atoms share electrons?
In which of the following years was the first Republic Day of India celebrated?
Relevant for Exams:
