The average weight of four person A, B, C and D is 80 kg. Aandrsquo;s weight is equal to the average weight of the other three. Bandrsquo;s weight is also equal to the average weight of the other three. Find the average weight (in kg) of C and D.a)80b)85c)75d)70Correct answer is option 'A'. Can you explain this answer?

Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity

Open App

Defence Exam > Defence Questions > The average weight of four person A, B, C and...

Join the Discussion on the App

The average weight of four person A, B, C and D is 80 kg. A’s weight is equal to the average weight of the other three. B’s weight is also equal to the average weight of the other three. Find the average weight (in kg) of C and D.

a)
80
b)
85
c)
75
d)
70

Correct answer is option 'A'. Can you explain this answer?

FREE This question is part of

AFCAT Mock Test - 8

Attempt Test

Attempt this Test

Verified Answer

The average weight of four person A, B, C and D is 80 kg. A’s we...

GIVEN:
Average weight of A, B, C and D = 80 kg
Weight of A = Weight of B + C + D/3
Weight of B = Weight of A + C + D/3

FORMULA USED:
Total weight = Average weight × Number of persons
Average weight of C + D = Total weight of C and D/2

CALCULATION:
Total weight of A, B, C and D = 80 × 4 = 320 kg
A = (B + C + D)/3
3A = B + C + D
If we add A to both sides,
4A = A + B + C + D
∴ A = 320/4 = 80
Similarly, B = 80 kg
Total weight of C + D = 320 – 80 – 80 = 160
∴ Average weight of C + D = 160/2 = 80 kg

View all questions of this test

Most Upvoted Answer

The average weight of four person A, B, C and D is 80 kg. A’s we...

The average weight of four people A, B, C, and D is 80 kg.

This means that if we add up the weights of all four people and divide by 4, we will get an average of 80 kg.

Let's say the weight of person A is a kg, person B is b kg, person C is c kg, and person D is d kg.

To find the average, we can add up the weights and divide by 4:

(a + b + c + d)/4 = 80

Now, we need more information to solve for the individual weights of A, B, C, and D.

Free Test

FREE

AFCAT Mock Test - 8
100 Ques | 120 Min

Start Free Test

View all free Defence tests

Community Answer

The average weight of four person A, B, C and D is 80 kg. A’s we...

GIVEN:
Average weight of A, B, C and D = 80 kg
Weight of A = Weight of B + C + D/3
Weight of B = Weight of A + C + D/3

FORMULA USED:
Total weight = Average weight × Number of persons
Average weight of C + D = Total weight of C and D/2

Share via Whatsapp

View all answers Start learning for free

< Previous Question Next Question >

Explore Courses for Defence exam

Similar Defence Doubts

Read the passage carefully and answer the questions that follow. Few words have been highlighted for your attention.Your body has an in-built thermostat, a sort of climate-control mechanism that helpsregulateinternal temperatures. It keeps you cool when temperatures soar in summer, and changes that up when the weather turns cold. But what when you’re cold even in hot weather? “It’s natural for a person to shiver when there’s an infection or a deficiency,” says Dr. Sujit Kar Purkayastha, Consultant Gastroenterologist, Peerless Hospital, Kolkata. For instance, many women who get a UTI, shiver, and you may find your child buried under a quilt when she gets the flu. There is, of course, the rare case of cold intolerance, possible in some people who are abnormally sensitive to cold temperatures, but for most, there’s an underlying cause that can be cured. The thyroid gland regulates heat in the body. When the gland is underactive, the body metabolism goes down and a person can feel unnecessarily cold. A malfunctioning thyroid results in a decrease in pulse pressure, indicating poor heart function. Blood flow is diverted from the skin, making the extremities feel cold,” says Dr. Alok Prasad.Iron is a key mineral that helps your red blood cells carry oxygen throughout your body, bringing heat and other nutrients to every cell in your system, says Dr. Thillai Vallal, senior consultant cardiologist, Venkateswara Hospitals, Chennai. Without enough iron, red blood cells can’t effectively do their job, and you tend to feel cold. Iron is also crucial because adeficiencycan make your thyroid lethargic, leading to hypothyroidism, which further leaves you cold. A blood test will pick up any problems, and you’ll be prescribed medication. Iron supplements can help, but the best way to boost your iron intake is through healthy food. “Include plenty of iron-rich food in your diets, such as lean meats, dark green vegetables, pulses, and dried fruits, and pair vegetarian food with citrus fruit high in vitamin C,” says Naini SetalvadWhen you’re underweight, you may lack an adequate amount of body fat to ‘insulate’ you from the cold. If you aren’t eating much, then your metabolism may struggle to create enough heat. This happens especially if you’re on an unreasonable diet, or if you struggle with an eating disorder. A healthy diet, containing the whole, healthy foods that have protein, fat, and carbohydrate, is the only way out, says Setalvad. Check whether you’re getting enough B vitamins. These are required by the body to convert the food we eat into energy. You can find this group of vitamins in grains such as brown rice, barley, and oats, as well as lean proteins and oily fish.Question: Which of these words is similar in meaning to the word regulate?

View answer

Read the passage carefully and answer the questions that follow. Few words have been highlighted for your attention.Your body has an in-built thermostat, a sort of climate-control mechanism that helpsregulateinternal temperatures. It keeps you cool when temperatures soar in summer, and changes that up when the weather turns cold. But what when you’re cold even in hot weather? “It’s natural for a person to shiver when there’s an infection or a deficiency,” says Dr. Sujit Kar Purkayastha, Consultant Gastroenterologist, Peerless Hospital, Kolkata. For instance, many women who get a UTI, shiver, and you may find your child buried under a quilt when she gets the flu. There is, of course, the rare case of cold intolerance, possible in some people who are abnormally sensitive to cold temperatures, but for most, there’s an underlying cause that can be cured. The thyroid gland regulates heat in the body. When the gland is underactive, the body metabolism goes down and a person can feel unnecessarily cold. A malfunctioning thyroid results in a decrease in pulse pressure, indicating poor heart function. Blood flow is diverted from the skin, making the extremities feel cold,” says Dr. Alok Prasad.Iron is a key mineral that helps your red blood cells carry oxygen throughout your body, bringing heat and other nutrients to every cell in your system, says Dr. Thillai Vallal, senior consultant cardiologist, Venkateswara Hospitals, Chennai. Without enough iron, red blood cells can’t effectively do their job, and you tend to feel cold. Iron is also crucial because adeficiencycan make your thyroid lethargic, leading to hypothyroidism, which further leaves you cold. A blood test will pick up any problems, and you’ll be prescribed medication. Iron supplements can help, but the best way to boost your iron intake is through healthy food. “Include plenty of iron-rich food in your diets, such as lean meats, dark green vegetables, pulses, and dried fruits, and pair vegetarian food with citrus fruit high in vitamin C,” says Naini SetalvadWhen you’re underweight, you may lack an adequate amount of body fat to ‘insulate’ you from the cold. If you aren’t eating much, then your metabolism may struggle to create enough heat. This happens especially if you’re on an unreasonable diet, or if you struggle with an eating disorder. A healthy diet, containing the whole, healthy foods that have protein, fat, and carbohydrate, is the only way out, says Setalvad. Check whether you’re getting enough B vitamins. These are required by the body to convert the food we eat into energy. You can find this group of vitamins in grains such as brown rice, barley, and oats, as well as lean proteins and oily fish.Q. Which of these occurs when the thyroid gland does not function properly?

View answer

Read the passage carefully and answer the questions that follow. Few words have been highlighted for your attention.Your body has an in-built thermostat, a sort of climate-control mechanism that helpsregulateinternal temperatures. It keeps you cool when temperatures soar in summer, and changes that up when the weather turns cold. But what when you’re cold even in hot weather? “It’s natural for a person to shiver when there’s an infection or a deficiency,” says Dr. Sujit Kar Purkayastha, Consultant Gastroenterologist, Peerless Hospital, Kolkata. For instance, many women who get a UTI, shiver, and you may find your child buried under a quilt when she gets the flu. There is, of course, the rare case of cold intolerance, possible in some people who are abnormally sensitive to cold temperatures, but for most, there’s an underlying cause that can be cured. The thyroid gland regulates heat in the body. When the gland is underactive, the body metabolism goes down and a person can feel unnecessarily cold. A malfunctioning thyroid results in a decrease in pulse pressure, indicating poor heart function. Blood flow is diverted from the skin, making the extremities feel cold,” says Dr. Alok Prasad.Iron is a key mineral that helps your red blood cells carry oxygen throughout your body, bringing heat and other nutrients to every cell in your system, says Dr. Thillai Vallal, senior consultant cardiologist, Venkateswara Hospitals, Chennai. Without enough iron, red blood cells can’t effectively do their job, and you tend to feel cold. Iron is also crucial because adeficiencycan make your thyroid lethargic, leading to hypothyroidism, which further leaves you cold. A blood test will pick up any problems, and you’ll be prescribed medication. Iron supplements can help, but the best way to boost your iron intake is through healthy food. “Include plenty of iron-rich food in your diets, such as lean meats, dark green vegetables, pulses, and dried fruits, and pair vegetarian food with citrus fruit high in vitamin C,” says Naini SetalvadWhen you’re underweight, you may lack an adequate amount of body fat to ‘insulate’ you from the cold. If you aren’t eating much, then your metabolism may struggle to create enough heat. This happens especially if you’re on an unreasonable diet, or if you struggle with an eating disorder. A healthy diet, containing the whole, healthy foods that have protein, fat, and carbohydrate, is the only way out, says Setalvad. Check whether you’re getting enough B vitamins. These are required by the body to convert the food we eat into energy. You can find this group of vitamins in grains such as brown rice, barley, and oats, as well as lean proteins and oily fish.Q. How does our body adapt to the weather changes?

View answer

Read the passage carefully and answer the questions that follow. Few words have been highlighted for your attention.Your body has an in-built thermostat, a sort of climate-control mechanism that helpsregulateinternal temperatures. It keeps you cool when temperatures soar in summer, and changes that up when the weather turns cold. But what when you’re cold even in hot weather? “It’s natural for a person to shiver when there’s an infection or a deficiency,” says Dr. Sujit Kar Purkayastha, Consultant Gastroenterologist, Peerless Hospital, Kolkata. For instance, many women who get a UTI, shiver, and you may find your child buried under a quilt when she gets the flu. There is, of course, the rare case of cold intolerance, possible in some people who are abnormally sensitive to cold temperatures, but for most, there’s an underlying cause that can be cured. The thyroid gland regulates heat in the body. When the gland is underactive, the body metabolism goes down and a person can feel unnecessarily cold. A malfunctioning thyroid results in a decrease in pulse pressure, indicating poor heart function. Blood flow is diverted from the skin, making the extremities feel cold,” says Dr. Alok Prasad.Iron is a key mineral that helps your red blood cells carry oxygen throughout your body, bringing heat and other nutrients to every cell in your system, says Dr. Thillai Vallal, senior consultant cardiologist, Venkateswara Hospitals, Chennai. Without enough iron, red blood cells can’t effectively do their job, and you tend to feel cold. Iron is also crucial because adeficiencycan make your thyroid lethargic, leading to hypothyroidism, which further leaves you cold. A blood test will pick up any problems, and you’ll be prescribed medication. Iron supplements can help, but the best way to boost your iron intake is through healthy food. “Include plenty of iron-rich food in your diets, such as lean meats, dark green vegetables, pulses, and dried fruits, and pair vegetarian food with citrus fruit high in vitamin C,” says Naini SetalvadWhen you’re underweight, you may lack an adequate amount of body fat to ‘insulate’ you from the cold. If you aren’t eating much, then your metabolism may struggle to create enough heat. This happens especially if you’re on an unreasonable diet, or if you struggle with an eating disorder. A healthy diet, containing the whole, healthy foods that have protein, fat, and carbohydrate, is the only way out, says Setalvad. Check whether you’re getting enough B vitamins. These are required by the body to convert the food we eat into energy. You can find this group of vitamins in grains such as brown rice, barley, and oats, as well as lean proteins and oily fish.Q. Which of these words is opposite in meaning to the word deficiency?

View answer

Read the passage carefully and answer the questions that follow. Few words have been highlighted for your attention.Your body has an in-built thermostat, a sort of climate-control mechanism that helpsregulateinternal temperatures. It keeps you cool when temperatures soar in summer, and changes that up when the weather turns cold. But what when you’re cold even in hot weather? “It’s natural for a person to shiver when there’s an infection or a deficiency,” says Dr. Sujit Kar Purkayastha, Consultant Gastroenterologist, Peerless Hospital, Kolkata. For instance, many women who get a UTI, shiver, and you may find your child buried under a quilt when she gets the flu. There is, of course, the rare case of cold intolerance, possible in some people who are abnormally sensitive to cold temperatures, but for most, there’s an underlying cause that can be cured. The thyroid gland regulates heat in the body. When the gland is underactive, the body metabolism goes down and a person can feel unnecessarily cold. A malfunctioning thyroid results in a decrease in pulse pressure, indicating poor heart function. Blood flow is diverted from the skin, making the extremities feel cold,” says Dr. Alok Prasad.Iron is a key mineral that helps your red blood cells carry oxygen throughout your body, bringing heat and other nutrients to every cell in your system, says Dr. Thillai Vallal, senior consultant cardiologist, Venkateswara Hospitals, Chennai. Without enough iron, red blood cells can’t effectively do their job, and you tend to feel cold. Iron is also crucial because adeficiencycan make your thyroid lethargic, leading to hypothyroidism, which further leaves you cold. A blood test will pick up any problems, and you’ll be prescribed medication. Iron supplements can help, but the best way to boost your iron intake is through healthy food. “Include plenty of iron-rich food in your diets, such as lean meats, dark green vegetables, pulses, and dried fruits, and pair vegetarian food with citrus fruit high in vitamin C,” says Naini SetalvadWhen you’re underweight, you may lack an adequate amount of body fat to ‘insulate’ you from the cold. If you aren’t eating much, then your metabolism may struggle to create enough heat. This happens especially if you’re on an unreasonable diet, or if you struggle with an eating disorder. A healthy diet, containing the whole, healthy foods that have protein, fat, and carbohydrate, is the only way out, says Setalvad. Check whether you’re getting enough B vitamins. These are required by the body to convert the food we eat into energy. You can find this group of vitamins in grains such as brown rice, barley, and oats, as well as lean proteins and oily fish.Question: Which of these is not a source of Vitamin B?

View answer

Share with a Friend

Answer this doubt

Question Description
The average weight of four person A, B, C and D is 80 kg. A’s weight is equal to the average weight of the other three. B’s weight is also equal to the average weight of the other three. Find the average weight (in kg) of C and D.a)80b)85c)75d)70Correct answer is option 'A'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about The average weight of four person A, B, C and D is 80 kg. A’s weight is equal to the average weight of the other three. B’s weight is also equal to the average weight of the other three. Find the average weight (in kg) of C and D.a)80b)85c)75d)70Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average weight of four person A, B, C and D is 80 kg. A’s weight is equal to the average weight of the other three. B’s weight is also equal to the average weight of the other three. Find the average weight (in kg) of C and D.a)80b)85c)75d)70Correct answer is option 'A'. Can you explain this answer?.

Solutions for The average weight of four person A, B, C and D is 80 kg. A’s weight is equal to the average weight of the other three. B’s weight is also equal to the average weight of the other three. Find the average weight (in kg) of C and D.a)80b)85c)75d)70Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Defence. Download more important topics, notes, lectures and mock test series for Defence Exam by signing up for free.

Here you can find the meaning of The average weight of four person A, B, C and D is 80 kg. A’s weight is equal to the average weight of the other three. B’s weight is also equal to the average weight of the other three. Find the average weight (in kg) of C and D.a)80b)85c)75d)70Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of The average weight of four person A, B, C and D is 80 kg. A’s weight is equal to the average weight of the other three. B’s weight is also equal to the average weight of the other three. Find the average weight (in kg) of C and D.a)80b)85c)75d)70Correct answer is option 'A'. Can you explain this answer?, a detailed solution for The average weight of four person A, B, C and D is 80 kg. A’s weight is equal to the average weight of the other three. B’s weight is also equal to the average weight of the other three. Find the average weight (in kg) of C and D.a)80b)85c)75d)70Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of The average weight of four person A, B, C and D is 80 kg. A’s weight is equal to the average weight of the other three. B’s weight is also equal to the average weight of the other three. Find the average weight (in kg) of C and D.a)80b)85c)75d)70Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice The average weight of four person A, B, C and D is 80 kg. A’s weight is equal to the average weight of the other three. B’s weight is also equal to the average weight of the other three. Find the average weight (in kg) of C and D.a)80b)85c)75d)70Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice Defence tests.

Explore Courses for Defence exam