Question
Aman has to travel a distance of 240 km. He travels the
first 25% of the distance at a speed of 50 kmph, the next two-fifths at a speed of 48 kmph, and the remaining distance at a speed of 35 kmph. Determine the approximate average speed of Aman throughout the entire journey.Solution
ATQ, Time for which the Aman travelled with the speed of 50 kmph = {(240 × 0.25)/50} = 1.2 hours Time for which the Aman travelled with the speed of 48 kmph = (240 × 2/5)/48 = 2 hours Distance travelled at the speed of 35 kmph = 240 – 240 × 0.25 – 240 × 2/5 = 240 – 60 – 96 = 84 km Time for which the Aman travelled with the speed of 35 kmph = 84/35 = 2.4 hours Average speed = {240/(1.2 + 2 + 2.4)} = 42.86 kmph
In which of the following country 19th Asian Games will be held?
Which one of the following is not a colloid ?
On the 73rd celebrations of the Republic day 2022, which tableaux had won the best tableau award in the central ministries and departments category?
A credit purchase of machinery recorded in Purchase Book instead of Journal Proper is an example of:
What scheme was launched by the government to encourage green field enterprises by SC/ST (Scheduled Castes and Scheduled Tribes) and women entrepreneurs...
LIC's women-focused initiative "LIC Bima Sakhi" is designed primarily to:
On which of the following days, the National Panchayati Raj Day is celebrated?
What is the name of the centralized web portal launched by the Reserve Bank of India for individuals to search unclaimed deposits across multiple banks?
What does "Triratna" mean in Buddhism?
Divan Cup is related to which sport?
Relevant for Exams:
