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Let the speed of the stream be 'x' km/hr So, speed of boat in still water = x X 4 = '4x' km/hr Distance between 'Y' and 'X' = (150/2) = 75 km/hr ATQ, (150/5x) + (75/3x) = 11 Or, (30/x) + (25/x) = 11 Or, (55/x) = 11 So, 'x' = 5 So, upstream speed of boat = '3x' = 3 X 5 = 15 km/hr Therefore, required time = (180/15) = 12 hours
Which figure from the given options would replace the question mark (?) if the following figure series were to be continued?
After the mid-term examination Rupesh ranked 10th from the top and Rachit ranked 21st from the bottom. If Rachit performed better than Rupesh and six st...
Select the Venn diagram that best illustrates the relationship between the following classes.
Vehicle, Car, Motorbike
Five friends London, Madrid, Paris, Rome, and Vienna are arranged in a circle facing the center. Madrid is to the immediate left of Paris. Rome is exact...
Select the number that can replace the question mark (?) in the following series.
5, 9, 17, 33, 65, ?
Which of the following Venn diagrams best represents the relationship between stars, planets and universe ?
Five friends, Purva, Roshan, Vibhor, Luna and Anuj, are wearing five different coloured T-shirts, red, black, purple, yellow and blue. Each of the frien...
Which of the following numbers will replace the question mark (?) in the given series?
13,14,23,48,97,178,?
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the odd letter-cluster.
