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
The ________ between the two nations resulted in years of peaceful relations.
Select the most appropriate option to fill in the blank
Artificial intelligence _________ more prevalent in 2030 with natural language processi...
I.The air was so still that there was hardly a ………. on the pond’s surface.
II.When she heard the news, a ………. of excitement passed ...
He will dispense ______ your services.
She was frail and sickly and looked more _______ a hairless rat than _________ human being.
Fill in the blank with the most appropriate word.
He seems to have no ______ of keeping his promise.
Stretching helps prevent lower back pain __________ tightness in the lower body.
They offered to help, but we knew they were just _______ to avoid taking any real responsibility.
Election campaigns often ____________ more heat than light, but this one was riddled with a string of controversies, which served to deflect attention ...
Fill the blank with the most appropriate word .
Suresh just -----------that ramesh is in America
Relevant for Exams:
