Speed of a boat in still water to speed of boat in upstream is 8: 7. If the boat can travel 450 km in downstream in 10 hours, then find the time taken by the boat to cover 34 km in still water.

Statement :No cup is a medal.

All medals are trophies.

No trophy is a shield.

Some shield are prizes.

Conclusion:

Statements:

Some years are months.

Some months are days.

Some days are weeks.

Conclusions:

Some diaries are not pencils. All notebooks are papers. Some diaries are not notebooks

Statements:                       All TVs are monitors.

Statements: Some colonies are park.

                             All parks are ground.

Statements: Some sweaters are coats.

            All coats are shawls.  

Conclusions: I. Some sweaters are shawls.

. Statements:

Some ovens are microwaves.

Only a few microwaves are toasters

No oven is a grinder

Conclusions:

Statement:

Only a few Mobile are laptop.

No laptop is pen.

A few pens are pencil. 

Conclusion:

Statements: 

Only a few Facebook are Messenger.

No Messenger is Hangout.

Only a few Snapchat are Whatsapp.

Statements: Some winters are summers.

All summers are springs.

All springs are seasons.