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Let the speeds of boats ‘A’ and ‘B’ in still water be 8x km/hr and 9x km/hr Therefore, speed of the current = 0.25 × 8x = 2x km/hr According to the question, 8x + 2x = 490/7 Or, 10x = 70 Or, x = 7 Therefore, upstream speed of boat ‘B’ = 9x – 2x = 7x = 49 km/hr Downstream speed of boat ‘B’ = 9x + 2x = 11x = 77 km/hr Required time taken = (98/49) + (770/77) = 2 + 10 = 12 hours
By the year 2006, how many railway zones were created under Indian Railways?
What is the name of the AI-powered system launched by Indian Railways for inspecting and sorting linens?
Which of the following railway institutes is based in Nashik?
Which railway station holds the Guinness World Record for the largest route relay interlocking system?
Initially, British Railways had adopted a gauge of:
How many route kilometres of Indian Railways are electrified as per the data till 2024?
As on 31 March 2011, the total route length of the broad gauge of the Indian Railways was:
Which innovation stabilizes railway tracks in flood-prone areas?