Question
A boat takes a total of 6 hours to go 24 km downstream
and return 24 km upstream. The stream speed is 3 km/h. Find the speed of the boat in still water.Solution
Let speed in still water = b km/h. Then 24/(b + 3) + 24/(b − 3) = 6. ⇒ 48b = 6b² − 54 ⇒ b² − 8b − 9 = 0 ⇒ b = 9.
Dog : Puppy :: Deer :Â ?
- Select the option that is related to third number cluster in the same way second number cluster is related to first number cluster.
16: 224 :: 25: ... Select the word-pair in which the two words are related in the same way as are the two words in the following pair.
Molasses : Sugar
Select the option that is related to the first number in the same way as the third number is related to the fourth number.
125 : ? :: 348: 107
Average age of a Father and his son Is 22 years. Ratio of their age is 10 : 1, what is the age of the son?
Select the option that is related to the fourth term in the same way as the first term is related to the second term.
QMDFEHKNJ : FDMQVJNKH ::...
‘Confined spaces’ is related to ‘Claustrophobia’ in the same way as ‘Insects’ is related to ‘______’.
If all the digits in each of the following numbers are arranged in descending order within the numbers, then which of the following will be highest numb...
There are eight cars A, B, C, D, E, F, G and H. Each car has a different price. Price of C is more than that of A and D. Price of atleast two cars is l...
In the given question, select the related letters from the given alternatives.
CHNS : EJMH: : TOPW : VQKD : : URGQ : ?
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