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# the average age of a family of 5 members is 35. the average age of father and mother in the family is 58. the average age of the eldest two children is 24. if the average age of the family at the time of birth of the third child was 41, then find the age of the third child?

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### Mohammed

Guys, does anyone know the answer?

get the average age of a family of 5 members is 35. the average age of father and mother in the family is 58. the average age of the eldest two children is 24. if the average age of the family at the time of birth of the third child was 41, then find the age of the third child? from screen.

## The average age of a family of 5 members is 30 years. If the age of the youngest member is 10 years, what was the average age of the family just a day before the birth of the youngest member?

The average age of a family of 5 members is 30 years. If the age of the youngest member is 10 years, what was the average age of the family just a day before the birth of the youngest member?

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Averages The average a... Question

The average age of a family of 5 members is 30 years. If the age of the youngest member is 10 years, what was the average age of the family just a day before the birth of the youngest member?

A 20 B 25 C 28 D 35 Open in App Solution

The correct option is B 25

Sum of ages of family members except the youngest member

= ( 5 × 30 ) − 10 = 140

Sum of ages of the members before the youngest member was born

= 140 − ( 4 × 10 ) = 100 Their average age = 100 4 = 25 years Suggest Corrections 5 SIMILAR QUESTIONS

Q. 3 years back the average age of a family with 5 members was 17 years. After 5 years average age of the family remains the same even after the birth of child. What is the age of the child now?Q. The average age of the family of five members is 24. If the present age of the youngest member is 8 yr, then what was the average age of the family at the time of the birth of the youngest member?Q. Eleven years earlier the average age of a family of 4 members was 28 years. Now the age of the same family with six members is yet the same, even when 2 children were born in this period. If they belong to the same parents and the age of the first child at the time of the birth of the younger child was same as there were total family members just after the birth of the youngest members of this family, then the present age of the youngest member of the family is:Q. The average age of a family of 5 members is 30 years. If the age of the youngest member is 10 years, what was the average age of the family just a day before the birth of the youngest member?Q.

10

years ago, the average age of a family of

4 members was 24

years. Two children having been born (with age difference of

2

years), the present average age of the family is again

24

years. Then the present age of the youngest child is:

स्रोत : byjus.com

## The average age of 5 members of a family is 24 years. If the youngest member is 8 years old, then what was the average age (in years) of the family at the time of the birth of the youngest member?

Click here👆to get an answer to your question ✍️ The average age of 5 members of a family is 24 years. If the youngest member is 8 years old, then what was the average age (in years) of the family at the time of the birth of the youngest member?

Question

A

B

C

D

## 32

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Updated on : 2022-09-05

Solution Verified by Toppr

Correct option is B)

Total age of the family=5×24=120 years

Total age 8 years ago=120−(5×8)=80 years

Number of members at the time of birth of youngest member =4

Required average= 4 80 ​ =20

47 7

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## The average age of a family of 5 members is 24 years old. If the present age of the youngest member is 8 years old, then what was the average age of the family at the time of birth of the youngest member?

Answer (1 of 14): avg=( sum of all numbers/# of numbers) Let x = the sum of all the numbers 24= x/5 x should be on one side 5(24)=(x/5)*5 120=x 120–(8*5) [since we would want to remove 8 years from everyone's age] 120–40=80 avg=(80/4)[It’s four because the youngest is still zero years old...

The average age of a family of 5 members is 24 years old. If the present age of the youngest member is 8 years old, then what was the average age of the family at the time of birth of the youngest member?

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Sort Reza Ali

B Com (Hons), MBA in Strategic Management & Financial Management, University of KwaZulu-Natal (Graduated 2005)Author has 1.3K answers and 604.5K answer views3y

So if the average age is 24 then the current aggregate age is 24 x 5 = 120

but at birth she was 0 years old therefore aggregate age 8 years ago - 120 - (8x5) = 80

but there were only 4 people who actually could be counted. The new born baby didn’t register a year or even a month.

So average age = 80/4 = 20 years old

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Edwin Bayden

Programmer at DStv2y

avg=( sum of all numbers/# of numbers)

Let x = the sum of all the numbers

24= x/5

x should be on one side

5(24)=(x/5)*5 120=x

120–(8*5) [since we would want to remove 8 years from everyone's age]

120–40=80

avg=(80/4)[It’s four because the youngest is still zero years old at this time]

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Terry Darwin

5x=120 —-> 5x=120-5x8 so 5x=80 so x=16.

Average age is 16. This assumes you are counting the youngest as a person of zero years old rather than someone who is about to be born, so one less family member.

Bachelor of Science in Cell Biology & Molecular Biology, Christopher Newport University (Graduated 2017)Author has 725 answers and 1.1M answer views4y

x/5 = 24 x = 120

120 - (8 * 5) = 80 {because other members were also 8 years younger}

80 / 4 = 20

When the youngest member of the family was born, the average age of the family (of 4 members) was 20!

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The average age of a family of five members is 30. If the present age of the youngest member is 8 yr, what was the average age of the family at the time of the birth of the youngest member?

Former CE, Graduate, PG, Research Scholar and Faculty at Indian Institute of Technology, Roorkee (1964–2000)Author has 57.6K answers and 35.7M answer views4y

The average age of a family of 5 members = 24 years.

Sum of the ages of the 5 members = 5*24 = 120 years.

The youngest member is 8 years now.

8 years ago their total age was 120–8*5 = 80.

The average age of the 4 members 8 years ago = 80/4 = 20 years.

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Sunil Gupta 4y

Total ages of five member=120

Age of youngest member=8

8 years ago the ages of 4member=120-(8×5)=80

Now,

The average ages of 4 member at the birth of youngest =80÷4=20.

Ratna Babu

I get 28 years as the average age of the family members prior to the youngest one being born.

But you say, at the time of birth - then perhaps it would be 22.4 years if you average it over 5 members.