Question
A metal plate with a circular hole at the centre is
heated. What will happen to the area of the hole?Solution
Assuming the disc is uniform and isotropic (the same in different directions), the hole will expand in the same ratio as the metal. It is because the thermal expansion equation applies to all lengths associated with the metal, including the circumference of the hole, since the edge of the hole is made out of metal. And if the circumference of the hole expands, so does the diameter.
Statements: No data is a number.
Some numbers are not letters.
Only letters are consonants.
Conclusions: I. All letters may be co...
Statements:
All rollers are coasters.
Some swings are rollers.
All bridges are swings.
Conclusions:
I. All coaste...
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if t...
Statements-
1. All phones are wires.
2. All switches are wires.
3. Some wires are poles.
4. Some poles are not phones.
<...Statements:
Only mango is apple.
No orange is a Peach.
Some Peaches are guavas.
Some guavas are mangoes.
Conclusio...
Statements:
Only a few Apple is Banana.
No Banana is Grapes.
Only a few Grapes is Mango.
All Mango is Papaya.
Conc...
Statements:Â Â Â Â Â Â Some pen are pencil.
All pencil are book.
Conclusions:Â Â Â Â Â Â I. Some pen are book.
II. Some book are ...
Statements:
All tomatoes are potatoes.
All potatoes are onions.
Conclusions:
I. Some potatoes are tomatoes.
II. All tomatoes are onions.
Statements:
Only a few A is B.
Only B is C.
Some A is D.
Conclusions:
No D being C is a possibility.
All B...
Statements:
Only a few blazers are red
Some red are black
No black are tie
Conclusions:
I. Some black are not red...
