Question
The ratio of the speed of boat ‘A’ in still water,
the speed of boat ‘B’ in still water and the speed of the current is 7:5:2, respectively. If the time taken by boat ‘A’ to travel (4D – 10) km downstream is equal to the time taken by boat ‘B’ to travel (D + 60) km upstream, then find the value of ‘D’.Solution
Let, the speeds of boat ‘A’ and boat ‘B’, in still water and the speed of the current be 7x km/hr, 5x km/hr and 2x km/hr, respectively. According to the question, (4D – 10)/(7x + 2x) = (D + 60)/(5x – 2x) Or, 12D – 30 = 9D + 540 Or, 3D = 570 Or, D = 190
Consider the following statements:
(a) Factor cost in the production is incurred on the various factors of indirect taxes rates in the economy....
Which organization developed and launched the ‘Ugram’ Indigenous Assault Rifle for the armed forces?
Recently a rare freshwater edible cyprinid fish was discovered by the researchers and was named Garra laishrami. Where was this fish discovered?
Stockholm Syndrome is a mental condition experienced by
Which perspective assumes that Labour-management conflict is inevitable in the workplace?
A shopkeeper sold an article after giving a discount of 20% and made a profit of Rs. 55. Find the marked price of the article if cost price of the artic...
Who wrote The Theory of Moral Sentiments, a precursor to his later work The Wealth of Nations?
Marked price of an article is Rs.250 more than its cost price. If profit earned is equal to the discount given then find the profit earned?
The polling of by-elections in some constituencies was cancelled in 2016, in which of the following States of India?
In a certain code language, 'SIGMA' is written as 'FVTZN' and 'FNYRQ' is written as 'SALED'. How will 'ARJUN' be written in that language?
Relevant for Exams:
