Start learning 50% faster. Sign in now
Let the speed of the stream be ‘x’ km/hr Therefore, speed of the boat in still water = 13x km/hr Upstream speed of the boat = 13x – x = 12x km/hr Downstream speed of the boat = x + 13x = 14x km/hr According to the question, 14x – 12x = 30 => 2x = 30 => x = 15 Therefore, upstream speed of the boat = 12x = 180 km/hr Required time taken = 540/180 = 3 hours
What is the shortcut key for 'Copy' in Windows?
The Internet utilizes the TCP/IP protocol and is accessed using a computer modem or network that is connected through an ISP . What is t...
If the consonants of the following words are arranged first, followed by the vowels as per the English alphabetical order and then the consonants are ch...
In computer networks, what does the term 'IP' stand for?
In a knockout football competition 23 teams participated. What was the least number of matches they needed to play to decide the winner?
What will be the fifth step for an input whose second step is given below?
Step II: 51 69 49 87 93 77 70 56
There are five magazine M, N, O, P, and Q. Magazine O lies above P, magazine Q is below M, P is above M and N is below Q. Which magazine is at the bottom?
Which of the following is an example of .xls and.doc?
Who is going to Meerut?