Question

B. Write 'T' for true and 'F' for false statements.
1. A courtyard is a covered space.
2. In multistoreyed houses people go up and down in lifts.
3. In olden times, man lived in pucca house.
4. Steel and iron are used to make multistoreyed buildings.
5. Ventilators are used to let in air and light.​

Answer 1

Answer:

True

False

True

False

True

Answer 2

Concept

Any sentence that can be true or untrue but not both is referred to as a true-false statement. The reverse of a truth value is the meaning of a negation of a statement. The symbol for a negation is p. The sentence "cucumbers are green" is true if we write it as "p: cucumbers are green."

Given

Some statements: 1. A courtyard is a covered space.

2. In multistoried houses people go up and down in lifts.

3. In olden times, man lived in pucca house.

4. Steel and iron are used to make multistoried buildings.

5. Ventilators are used to let in air and light.​

Find

Whether the given statements are true or false.

Solution

1. False. A courtyard is an open space.
2. True. It is hard to climb stairs hence in multistoried houses people go up and down in lifts.
3. False. In older times man live in kuchcha house.
4. True. Steel and iron are used to make multistoried buildings.
5. False. Ventilators are used only for air to pass.

Hence, the sentences are False, True, False, True, False.

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