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ATQ, Downstream speed of the Ship = (s + 30)/5 = ‘0.2s + 6’ km/h Upstream speed of the Ship= (s – 10)/5 = ‘0.2s – 2’ km/h Speed of the stream = (0.2s + 6 – 0.2s + 2)/2 = 4 km/h Speed of the ship in still water = 5 × 4 = 20 km/h According to question: 0.2s + 6 = 20 + 4 0.2s = 18 s = 90 So the time taken by the ship to cover ‘4s – 170’ km in still water = (4 × 90 – 170)/20 = 9.5 hours = 9 hours 30 minutes
Statement:
I) No A is B
II) No B is C
III) Some D are C
IV) All D are E
Conclusion:
I) Some E are not D
II) Some A are C
III) No C is A
Statements: Some ractangle are envelope.
All envelope are square.
...
In the questions given below there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be ...
Which of the following means K is grandmother in law of M?
How many children does Mr. Raman has?
I. Mr. Raman has eight sons and each has one sister.
II. Number of sons of Mr. Raman is eight times ...
In this question, after two statements I and II two conclusions have been given. Assuming the given in the statement together as truth, consider both th...
Statements:
All Pearl are Flower.
Some Bud are Pearl.
No Flower is a Stem.
Conclusions:
I. Some Bud are Flower is a p...
