Coke, Profit Calculation, and Family Relationships

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Questions and Answers

What is the primary reason for the dough rising in size after being kneaded by Isha?

The dough rose due to the production of oxygen gas during fermentation.

The presence of warm water with sugar facilitated the dough's rise.

The production of carbon dioxide gas by yeast caused the dough to expand. (correct)

The multiplication of yeast in the dough caused it to rise.

Which component in Isha's recipe helps yeast to produce carbon dioxide effectively?

Sugar (correct)

Warm water

Refined wheat flour

Yeast powder

What effect does the temperature of the water have on the yeast's activity in the dough?

Cold water stimulates yeast activity.

Room temperature water is optimal for yeast respiration.

Warm water enhances yeast growth and activity. (correct)

Water temperature has no effect on yeast activity.

What happens to the dough during the two-hour period of rising?

Gas bubbles from yeast fill the dough, causing it to expand. Signup and view all the answers

Why is yeast considered a microorganism in the context of baking?

It reproduces rapidly and contributes to fermentation processes. Signup and view all the answers

Which of the following substances is the purest form of carbon and provides maximum energy when burned?

Coke Signup and view all the answers

If the cost price of 9 articles is ₹9, what is the selling price of 7 articles?

₹9 Signup and view all the answers

What is the profit percentage if 7 articles are sold for the cost price of 9 articles?

200% Signup and view all the answers

Which of the following is NOT a product derived from coal?

Petrol Signup and view all the answers

How would you define the relationship between the selling price and cost price in the scenario where 7 articles are sold for the cost price of 9?

Selling price is less than cost price. Signup and view all the answers

What is the correct calculation for the profit made by selling 9 articles in the described scenario?

₹7 Signup and view all the answers

What is the total cost price of 9 articles if the cost price of one article is ₹1?

₹9 Signup and view all the answers

If coke is known for burning with maximum efficiency, what is one of its primary uses?

As a fuel in industrial processes Signup and view all the answers

What is the relationship of D to A?

Grandson Signup and view all the answers

Which profession is not held by any female member of the family?

Lawyer Signup and view all the answers

Who among the following is the mother of E?

C Signup and view all the answers

Which character is in the middle of D and C?

F Signup and view all the answers

Which of the following pairs are adjacent to each other?

B and C Signup and view all the answers

What is the total number of members in the family?

7 Signup and view all the answers

Which member is a male lawyer?

G Signup and view all the answers

Who is not adjacent to A in the seating arrangement?

F Signup and view all the answers

What is the primary function of the parathyroid gland?

Maintains calcium levels in the blood Signup and view all the answers

Which material is commonly used for making handles of cooking utensils?

Bakelite Signup and view all the answers

Identify the incorrect pair of natural and synthetic fibers.

Natural fibre–Polyester Signup and view all the answers

If the area of a wooden block increases while the force applied remains constant, what happens to the pressure?

Decreases Signup and view all the answers

Which gland is primarily linked to regulating the basal metabolic rate in the body?

Thyroid gland Signup and view all the answers

What function does the thymus gland serve in the human body?

Functions in lymphocyte maturation Signup and view all the answers

What is the characteristic property of Bakelite that makes it suitable for electrical switches?

It is a poor conductor of heat and electricity Signup and view all the answers

Which of the following is a property of synthetic fibers?

They can be engineered for specific uses Signup and view all the answers

What observation can be made when carbon dioxide gas is dissolved in water?

An acid is formed in the solution. Signup and view all the answers

What happens to blue litmus paper when it is placed in water containing dissolved carbon dioxide?

It turns red. Signup and view all the answers

What is the result of passing carbon dioxide into a water beaker?

The water becomes acidic. Signup and view all the answers

Why do stars, except Polaris, appear to rotate from east to west?

Due to the Earth's rotation. Signup and view all the answers

In the arrangement of positions described, where is A located?

To the right of G. Signup and view all the answers

Which statement about the experiment with carbon dioxide and water is accurate?

An acid is created in the solution. Signup and view all the answers

In the arrangement of G, C, F, and A, how is F positioned relative to D?

Fourth to the right. Signup and view all the answers

What is the role of carbon dioxide when it dissolves in water during an experiment?

It reacts to form carbonic acid. Signup and view all the answers

Study Notes

Coke as a Fuel

Coke is the purest form of carbon.
It burns efficiently and provides maximum energy.

Profit Percentage Calculation

If 7 articles are sold for the cost price of 9, the profit is calculated as follows:
- Cost price (CP) of 9 articles = ₹9 (assuming ₹1 per article)
- Selling price (SP) of 7 articles = ₹9
- SP of 9 articles = (9/7) * 9 = ₹81/7
- Profit = (81/7) - 9 = ₹18/7
- Profit percentage = (18/7) * 100 ≈ 257%

Family Relationships

A, B, C, D, E, F, and G are family members.
There are two doctors, two teachers, two professors, and one lawyer.
No female is a teacher or lawyer.
The teacher's wife is a professor, and the lawyer's wife is also a professor.
C is F's daughter-in-law and E's mother.
B (a doctor) is G's son. E (not a professor) is the lawyer's daughter.
A's husband is a teacher; A is C's mother-in-law and B's grandmother.
F is B and D's grandfather.
D is A's grandson.

Hexagonal Seating Arrangement

Six people (A, B, C, D, E, F) sit in a hexagon.
A is not next to B or C.
D is not next to C or E.
B and C are adjacent.
F is between D and C.
One possible arrangement is B, C, F.

Circular Seating Arrangement

Seven people sit in a circle.
G is second to the left of C, who is to the immediate left of F.
B is between D and E.
A is third to the left of E.
The order is D, B, E.
F's position is fourth to the right of D, to the immediate right of C, between C and E, and second to the right of A

Carbon Dioxide and Litmus Paper

Carbon dioxide dissolves in water.
The resulting solution turns blue litmus paper red.
This indicates the formation of an acid (carbonic acid).

Star Rotation and Polaris

Stars appear to rotate east to west due to Earth's rotation.
Polaris (the North Star) is an exception because it's located almost directly above the Earth's North Pole.

Cooking Utensil Handles

Cooking utensil handles are made of Bakelite because it's a poor conductor of heat and electricity.

Natural and Synthetic Fibers

Polyester is a synthetic fiber, not a natural fiber.

Pressure and Area

Pressure is force per unit area.
If the area increases and the force remains constant, the pressure decreases.

Yeast and Dough Rising

Yeast in dough produces carbon dioxide during respiration.
The carbon dioxide gas causes the dough to rise.

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Description

This quiz covers three distinct topics: the efficiency of coke as a fuel, the calculation of profit percentages in sales, and understanding family relationships through a logical puzzle. Participants will engage with each topic to assess their knowledge and analytical skills.