#### Problems on Ages Question & Answers

# The average of ages of threee persons is 60 years . Those ages are in the proportion of 1:2:3. what is the age of the youngest one among them?

Suppose the ages of three persons are x, 2x, 3x years respectively

Hence, age of youngest person = x = 30 years.

Subject: Problems on Ages - Quantitative Aptitude - Arithmetic Ability

Tags: The average of ages of threee persons is 60 years . Those ages are in the proportion of 1:2:3. what is the age of the youngest one among them

- Related Questions

Ten years ago, A was half of B in age. If the ratio of their present ages is 3:4, then what will be the total of their present ages?

Let A's age 10 years ago be x years . Then B's age 10 years ago be 2x years

Total of their present ages = x + 10 + 2x + 10

= 3x+20

= 3 * 5 + 20 = 35 years

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Subject: Problems on Ages - Quantitative Aptitude - Arithmetic AbilityThe average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of number of boys to the number of girls in the class is

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Subject: Problems on Ages - Quantitative Aptitude - Arithmetic AbilityThe ratio of the father's age to the son's age is 3 : 1. The product of their ages is 147. The ratio of their ages after 5 years will be?

Let father's age be 3x and son's age be x years

Father's age after 5 years = 3x + 5 = 26 years

Son's age after 5 years = x + 5 = 12 years

Ratio of father's and son's ages = 26 : 12 = 13 : 6

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Subject: Problems on Ages - Quantitative Aptitude - Arithmetic AbilityThe average age of a couple was 26 years at the time of marriage. After 11 years of marriage, the average age of the family with 3 children become 19 years. The average age of the children is

The average age of a couple = 26 years.

Total age of couples = 26 x 2 = 52 years

Total age of couple after 11 years = (52 + 2 * 11 ) = 74 years

Suppose average age of 3 children after 11 years is 3x years.

The average age of children is 7 years.

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Subject: Problems on Ages - Quantitative Aptitude - Arithmetic AbilityThe average age of a group of 10 students is 15 years. When 5 more students join the group, the average age increase by 1 year. The average age of the new student is?

Total age of 10 students = 150 years

Total age of 15 students = 240 years

Total age of 5 new students = 240 - 150 = 90 years

Average age of 5 new students = 90/5 = 18 years.

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Subject: Problems on Ages - Quantitative Aptitude - Arithmetic Ability