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 8:5:2, respectively. If the time taken by boat ‘A’ to travel (5D – 50) km downstream is equal to the time taken by boat ‘B’ to travel (D + 55) 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 8x km/hr, 5x km/hr and 2x km/hr, respectively. According to the question, (5D – 50)/(8x + 2x) = (D + 55)/(5x – 2x) Or, 15D – 150 = 10D + 550 Or, 5D = 800 Or, D = 140
Which of the following letter-clusters will replace the question mark (?) in the given series?
LOK, JMI, HKG, FIE, ?
Which figure should replace the question mark (?) in the following series to continue the pattern?
Three statements are followed by three conclusions numbered I, II and III. You have to consider these statements to be true, even if they seem to be at ...
What should come in place of ? in the given series?
26 37 59 92 136 ?
X # Y means 'X is the brother of Y'
X @ Y means 'X is the daughter of Y'
X & Y means 'X is the husband of Y'
X % Y means 'X is the ...
UBIP is related to YFMT in a certain way based on the English alphabetical order. In the same way, IPWD is related to MTAH. To which of the following is...
Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(NOTE : Operations should be performed ...
Three of the following words are alike in some manner and hence form a group. Which word does NOT belong to that group? (The words must be considered as...
Complete the given series by replacing ‘?’
3, 8, 14, 21, 29, ‘?’
Select the figure from among the given options that can replace the question mark (?) in the following series.
