Question
There are 15 numbers such that average of first 12
numbers is 45 while the average of last five numbers is 56. Find the 12th number, if the ratio between 11th and 12th number is 13:7, respectively.Solution
Sum of first 12 numbers = (12 x 45) = 540 Sum of last 5 numbers = (56 x 5) = 280 Sum of 11th and 12th number = (540 - 280) = 260 So, 12th number = 260 x (7/20) = 91
Statements:
Only diameter is circle
Some diameter is triangle
No triangle is square
Conclusions:
I. All ci...
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Statements-:
All pens are books.
All books are Laptop.
Some Laptop are Sticks.
Conclusions :-
I. Some Sticks are b...
Statement :
No dog is a cat.
All cats are mats.
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Conclusion:
I. Some dogs are mats.
II. All dogs can never be mats.
Statement:Â
Each O is P.
Only a few P are J.
Some J are K.
Conclusion:
I. All P are O.
II. All O are not ...
Statements: Â Â Â Â
All shares are debentures.
No debenture is an equity.
Conclusions:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ...
Statements: Apples # Banana Pears % Banana Papaya & Banana Grapes # Papaya
Conclusions:
I. Apples % Pears
II. Grapes ≤ Papay...
Conclusions:
I. Some Years are being Months is a possibility
II. Some Weeks are being Years is a possibility
Statements:
Statements:Â Â All mouse are keyboard.
           Some keyboard are speaker.
            No monitor is speak...
Statement : All books are pens.
Some pens are desks.
No desk is a chair.
Some chairs are tables.
Conclusion:
I. So...
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