Question
The ratio of speeds of ‘E’ and ‘F’ is 11:5,
respectively. If the sum of time taken by them to travel 550 km each is 80 hours, then find the difference between the time taken by them to travel the same distance.Solution
ATQ, Let the speeds of ‘E’ and ‘F’ be 11x km/hr and 5x km/hr, respectively. According to the question, (550/11x) + (550/5x) = 80 Or, 80x = 50 + 110 Or, 80x = 160 Or, x = 2 Therefore, speed of ‘E’ = 11x = 22 km/hr Speed of ‘F’ = 5x = 10 km/hr Required difference = (550/10) – (550/22) = 55 – 25 = 30 hours
Who was the ruler of the Koch dynasty during the spread of Ekasarana Dharma by Sankardev?
Who was the father of Mughal Emperor Aurangzeb?
The first Sultan to adopt the principle of measurement of cultivable land for determining the land revenue was
The Chipko Movement was associated with the conservation of:
When did Vasco da Gama, a resident of Portugal, reach Kozhikode (Calicut), Kerala, on the western coast of India?
Who was the mother of Samudragupta, the renowned emperor of the Gupta Empire?
Match the columns.
Institutions �...
Which Mughal Emperor originally built the Aram Bagh, the oldest Mughal garden in India?
Amir Khusrau was a musician and a
Atmospheric Pressure at sea level equals:
