A boat can travel 30 km downstream in 45 min. The ratio of the speed of the boat in still water to the speed of the stream is 5: 3. How much time will the boat take to cover 25 km upstream?
Speed of downstream = D/T = 30 × (60/45) = 40 km/hr The ratio of the speed of the boat in still water to the speed of the stream = 5: 3 (5x, 3x) => 8x = 40 => x = 5 Speed of upstream = 5x – 3x = 2x = 10 km/hr Distance = 25 km Time = D/S = 25/10 = 2(1/2) hr = 2-hour 30 min
Which of the following letter will be 4th letter from the left end if the letters at even positions are replaced by succeeding letter in the...
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 c...
If all the letters in the word SLIGHT are arranged in alphabetical order from left to right in such a way that vowels are arranged first followed by con...
The position of how many alphabets will remain unchanged if each of the alphabets in the word ‘JUGGLING’ is arranged in alphabetic...
If 1 number is added in the even digit in the given number 47896358 and 2 is subtracted from an odd digit, then how many digits are repeated in the new...
Which of the following is correct?
In the word ‘JACKPOT’ all consonants are written as their preceding letter and all vowels are written as their following letters. Now all l...
If in a number ' 485843698 ', all the digits are arranged in descending order and digits that occur at the same place after rearrangement are dropped, t...
If third letter from the left end of each word from each group is to be considered, then which among the following group of words can make at least one ...
Among U, V, W, X and Y, U is heavier than V but lighter than W. V is heavier than only Y. W is not the heaviest. Who among them will be in the middle i...
