Question
A boat has a speed of 30 km/h in still water. When the
boat travels downstream in a stream, its speed increases by 50% compared to when it moves upstream. Determine the speed of the stream.Solution
Let the speed of the stream = 'k' km/h Then, upstream and downstream, speed of the boat are (30 - k) km/h and (30 + k) km/h, respectively According to the question, 30 + k = (30 - k) X 1.5 Or, 30 + k = 45 - 1.5k Or, 2.5k = 15 So, k = 6 Therefore, speed of the stream = 6 km/h
Match Column I and Column II and choose the correct match from the given choice
In the following questions two columns are given containing three sentences/phrases each. In first column, sentences/phrases are A, B and C and in the ...
Column (1)
Column (1)
In the following questions two columns are given. In column-I three sentences are given, each of them consisting of a blank which may or may not be fil...
In the following questions two columns are given containing three sentences/phrases each. In first column, sentences/phrases are A, B and C and in the ...
(A)The Mission launche...
In the following questions two columns are given containing three Sentences/phrases each. In first column, sentences/phrases are A, B and C and in the ...
Match the phrases in Column 1 with the phrases in Column 2.
In each of the following questions, a sentence is given with three blanks. Each question is followed by a table which consists of three columns. You ar...
Relevant for Exams:
