There are some Crows and Cows in a field. If the total number of heads in the field is 480 and the total number of legs is 1320, what is the number of crows in the field?
Number of crows = 5/8× 480 = 300 Alternate shortcut method: Number of cows = (4×number of legs – number of feet)/2 = (4×480 – 1320 )/2 = (1920 – 1320 )/2 = 600/2 =300 Note: if number of cows is asked, then use this shortcut, Number of crows = (number of legs –2×number of feet)/2
Statements : Some trains are buses.
Some buses are trucks.
No truck is a car.
Conclusions:I. Some trains are not trucks.
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Statements: some record are folder.
No folder is a data.
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Statement:
I) Some colour are nice
II) Some nice are floor
III) No floor is blue
IV) All colour are good
Conclusi...
Some diaries are not pencils. All notebooks are papers. Some diaries are not notebooks
Statements:
Only a few Facebook are Messenger.
No Messenger is Hangout.
Only a few Snapchat are Whatsapp.
No Whatsapp...
Statements:
Some Cable are Table
No Table are Chair
All Chair are Rack
Conclusions:
I) Some Cable are not Rack...
Statements:
All carpet are towels.
Some mat are carpet.
Conclusions:
I. Some mat are towels.
II. No mat is carpet.
. Statement:
Few burger are not maggi.
All maggi are Pizza.
Only a few Pizza are dosa.
Conclusio...
Statement:
At-least some E are F.
A few F are G.
Only a few H are F.
All F are Q.
Conclusion:
I. All G b...
Statements:
All Dog is Cat
Only a few Cat is Tiger
No Tiger is Lion
Conclusions:
I) Some Dog is not Lion
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