Start learning 50% faster. Sign in now
Average speed = (Total distance covered/Total time taken) Total distance covered by 'X' = (90 + 150) ÷ 0.8 = 300 km Let the speed of 'X' at which he travelled for 150 km be 'a' km/h Total time taken by 'X' to complete the journey = (90/60) + (150/a) + (60/120) = 1.5 + (150/a) + 0.5 = {2 + (150/a)} hours Also, total time taken = (300/75) = 4 hours Therefore, 2 + (150/a) = 4 Or, 'a' = (150/2) = 75 So, percentage increase in the speed = {(75 - 60)/60} X 100 = 25% So, y = 25
Who was the first Indian woman to win an Olympic medal
Consider the following statements:
Statement (A): During winter, the air quality in Delhi is high.
Statement (R): In the winter season, th...
What does S & P 500 relate to?
Which of the following is the UNESCO world heritage sites in the state of Rajasthan?
Which company was recognized as the fastest-growing IT services brand in the Brand Finance India 100 report in September 2024?
Which of the statement is not true in regards to the health system during the Panwar dynasty:
What is the characteristic shape of an 'atoll'?
When is World Gujarati Language Day celebrated?
What is the capital city of Jordan?
Of the following which is NOT correct about International Court of Justice?
1) It is a judicial branch of the United Nations (UN)
2) It wa...