Question
Find the time taken by boat D to cover downstream
distance, if the total time taken to complete the journey is 12.5 hours?Solution
Speed of boat D in still water = 6 km/hr Speed of stream = 2 km/hr Total time taken by boat D for entire journey = 12.5 hours Let, total distance travelled by boat D = d kms Upstream distance = 66% of d = kms Downstream distance = kms Upstream speed = 4 km/hr Downstream speed = 8 km/hr Total time taken by boat D = Time taken for upstream + time taken for downstream + = 12.5 On solving the above equation, we get, d = 60 kms Downstream distance = = 20 kms Time taken = = 2.5 hours
Conclusions:
I. No Lid being Utensil is a possibility.
II. Some Spoons are not Plates.
III. Some Spoons are Cups.
Statements:
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Statement:
Each girl is boy.
Only a few girls are men.
Few girls are not women.
Conclusion:
1. All boys can be wome...
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All pineapple are peach.
All peach are cherry.
All cherry are papaya.
Conclusions:
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No curtain is wall.
None of the walls is windows.
All windows are roofs.
Conclusions:
I. Mostly roofs bei...
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No chicken is a hen.
No hen is a pigeon.
Conclusions : I. Some eggs may be hens.
II....
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All SBI is RBI.
Only a few RBI is UCO.
Only a few UCO is UGB.
No UGB is IDBI.
Conclusions :
I. ...
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No rectangle is a square.
Conclusions:I. No square is a rectangle.
II. Some rectangles are...
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All stories are novels.
All novels are articles.
Conclusions:
I. All articles are...
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