A porter lifts luggage of 20 kg from the ground and puts it on his head 2 m above the ground. Calculate the work done by him on the luggage (take g = 10ms^-2)

Statements:  Some documents are files.

All books are folders.

No file is a folder.

Statements: No painting is a frame.

All frames are lights.

Some lights are canvas.

Conclusions: I. No light is a painting.

Statements: No swan is a penguin.

                           Some penguins are kingfisher.

Statements:

Some laptops are printer.

All printer are camera.

Some camera are scanner.

Conclusions:

Statements: All watches are clocks.

Some wall clocks are calculators.

Conclusions: I. No watch is a calculator.

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

What is the shortest distance between S and U?

Statements: 

Some Applications are not Leaves.

All Leaves are Granted.

Only a few Granted are Considerations.

Statement :       

Some plugs are tablets.