Question
The speed of the boat A and B in still water are in the
ratio 15:13. The speed of the current for both boats is 16 km/hr. If the sum of time taken by boat A in downstream to travel 184 km and time taken by boat B to travel 40 km in upstream is 8 hours. Find the difference between the speed of boat A in upstream and B in downstream.Solution
Let the speed of the boats ‘A and ‘B’ in still water be ‘15x’ km/hr and ‘13x’ km/hr, repectively Speed of boat ‘A’ in downstream = (15x+16) km/hr Speed of boat ‘B’ in upstream = (13x-16) km/hr According to the question, 
(2444x – 3008) + (600x+640) = 8*(195x2 –32x-256) 3004x-2368 = 1560x2 –256x-2048 1560x2 – 3260x + 320 = 0 78x2 – 163x + 16 = 0 X= 1.98 or 0.10 X= 2 approx. Speed of the boat A and B in still water is 30km/hr and 26 km/hr . Speed of boat A in upstream = 30-16 = 14 km/hr Speed of the boat B in downstream = 26+16 = 42 km/hr Required sum = 14km/hr +42 km/hr = 56 km/hr.
Recently National Bank for Agriculture and Rural Development (NABARD) has sanctioned Rs 220.50 crore to the which state government under Rural Infrastru...
Which of the following bank has been given approval to conduct government business?
What is the significance of the newly inaugurated Pamban Bridge in Tamil Nadu?
Recently Infibeam avenue received a _______ licence from RBI for Bharat Bill Payment.
Recently the Government has formulated a NAMASTE scheme for cleaning of sewer and septic tanks. What does M stand for?
As of December 29, 2023, what percentage of ₹2,000 banknotes in circulation has been returned to the Reserve Bank of India (RBI)?
According to the study "Climate Change in the Indian Mind, 2023," what percentage of respondents agree that global warming is real?
Who has become the first Indian to be named the 'Best Asian Under-20 Male Athlete of the Year'?
What is the projected GDP growth for South Asia in 2025, as reported by the UN?
Who will launch the Computerization project for Agriculture and Rural Development Banks (ARDBs) and the Registrar of Cooperative Societies (RCSs) on Jan...
