type 2 age based ratio & proportion problems Section-Wise Topic Notes With Detailed Explanation And Example Questions
MOST IMPORTANT quantitative aptitude - 9 EXERCISES
-
199+ Ratio Proportion Basic Concepts MCQ Questions Answers »
-
Top 199+ Ratio Proportion Age Based MCQ Questions Answers »
-
159+ Ratios Proportions Addition Subtraction product MCQ »
-
199+ Ratio Proportion Income, Expenditure Problems MCQS »
-
199+ Partnership Aptitude (Ratio) MCQ Questions Answers »
-
259+ Ratio and Proportion (fractions) Aptitude MCQ Quiz »
-
199+ Ratio and Proportion Aptitude Questions Answers MCQ »
-
299+ Alligation and Mixture Problems Aptitude MCQ Quiz »
-
249+ Ratio and Proportion Coins Based Questions Answers »
The following question based on ratio & proportion topic of quantitative aptitude
(a) 33 years
(b) 30 years
(c) 32 years
(d) 35 years
The correct answers to the above question in:
Answer: (d)
A’s present age = 5x years
B’s present age = 6x years
According to the question,
After 7 years,
${5x + 7}/{6x + 7} = 6/7$
36x + 42 = 35x + 49
36x - 35x = 49 - 42
x = 7
A’s present age
= 5x = 35 years
Discuss Form
Read more age based ratio and proportion problems Based Quantitative Aptitude Questions and Answers
Question : 1
The ratio of ages of two persons is 5 : 9 and the age of one of them is greater than the other by 40 years. The sum of their ages in year is
a) 150
b) 160
c) 140
d) 180
Answer »Answer: (c)
Age of first person = 5x years
Age of second person
= 9x years
According to the question,
9x - 5x = 40
4x = 40 ⇒ x = 10
Sum of their ages
= 5x + 9x = 14x
= 14 × 10 = 140 years
Question : 2
The ratio of age of two boys is 5 : 6. After two years the ratio will be 7 : 8. The ratio of their age after 12 years will be
a) $17/18$
b) $11/12$
c) $15/16$
d) $22/24$
Answer »Answer: (a)
The present age of boys are 5x and 6x years respectively.
After 2 years,
${5x + 2}/{6x + 2} = 7/8$
42x + 14 = 40x + 16
2x = 2 ⇒ x = 1
Ratio after 12 years
5x + 12 : 6x + 12 = 17 : 18
Question : 3
The ratio of the present age of Puneet and Appu is 2 : 3. After 3 years the ratio of their age will be 3 : 4. The present age of Puneet is :
a) 9 years
b) 4 years
c) 6 years
d) 3 years
Answer »Answer: (c)
Let the present age of Puneet and Appu be 2x and 3x years respectively.
After 3 years,
${2x + 3}/{3x + 3} = 3/4$
9x + 9 = 8x + 12
x = 3
Present age of Puneet
= 2x = 2 × 3 = 6 years
Question : 4
Four years ago, the ratio of A’s age to B’s age was 11 : 14 and four years later their age will be in the ratio 13 : 16. The present age of A is
a) 44 years
b) 28 years
c) 26 years
d) 48 years
Answer »Answer: (d)
Let the age of A and B four years ago be 11x and 14x years respectively.
According to the question,
After 4 years from now,
${11x + 8}/{14x + 8} = 13/16$
176x + 128 = 182x + 104
182x - 176x = 128 - 104
6x = 24 ⇒ $x = 24/6$ = 4
A’s present age = (11x + 4) years
= 11 × 4 + 4 = 48 years
Question : 5
The ratio of the present ages of two boys is 3:4. After 3 years, the ratio of their ages is equal to will be 4:5.The ratio of their ages after 21 years will be
a) 11:12
b) 10:11
c) 17:19
d) 14:17
Answer »Answer: (b)
Let the ages of boys be 3x and 4x years respectively.
According to the question,
After 3 years
${3x + 3}/{4x + 3} = 4/5$
16x + 12 = 15x + 15
16x - 15x = 15 - 12
x = 3
Required ratio after 21 years
= ${3x + 21}/{4x + 21}$
= ${3 ×3 + 21}/{4 × 3 + 21} = {9 + 21}/{12 + 21}$
= $30/33 = 10/11$
Question : 6
The current ages of Sonali and Monali are in the ratio 5 : 3. Five years from now, their ages will be in the ratio 10 : 7. Then, Monali’s current age is :
a) 9 years
b) 15 years
c) 3 years
d) 5 years
Answer »Answer: (a)
Sonali’s present age
= 5x years
Monali’s present age = 3x years
According to the question,
After 5 years,
${5x + 5}/{3x + 5} =10/7$
${x +1}/{3x + 5} = 2/7$
7x + 7 = 6x + 10
7x - 6x = 10 - 7
x = 3
Monali’s present age
= 3x = 9 years
GET ratio & proportion PRACTICE TEST EXERCISES
type 1 basic concepts of ratio & proportion
type 2 age based ratio & proportion problems
type 3 addition subtraction product on ratio & proportion
type 4 income & expenditure based ratio & proportion problems
type 5 shares & partnership based ratio & proportion problems
type 6 fractions based ratio & proportion problems
type 7 finding sum difference product based ratio & proportion problems
type 8 alligation & mixtures based ratio & proportion problems
type 9 coins & rupees based ratio & proportion problems
ratio & proportion Shortcuts and Techniques with Examples
Verbal Reasoning
Question & Answer Quiz
Non Verbal Reasoning
Question & Answer Quiz
Quantitative Aptitude
Question & Answer Quiz
Computer MCQ
Question & Answer Quiz
General English
Question & Answer Quiz
History GK
Question & Answer Quiz
Polity GK
Question & Answer Quiz
Geography GK
Question & Answer Quiz
Economy GK
Question & Answer Quiz
General Awareness GK
Question & Answer Quiz
Recently Added Subject & Categories For All Competitive Exams
100+ Quadratic Equation Questions Answers PDF for Bank
Quadratic Equation multiple choice questions with detailed answers for IBPS RRB SO. more than 250 Attitude practice test exercises for all competitive exams
Continue Reading »
IBPS Aptitude Linear Equations MCQ Questions Answers PDF
Linear equations multiple choice questions with detailed answers for IBPS RRB SO. more than 250 Attitude practice test exercises for all competitive exams
Continue Reading »
New 100+ Compound Interest MCQ with Answers PDF for IBPS
Compound Interest verbal ability questions and answers solutions with PDF for IBPS RRB PO. Aptitude Objective MCQ Practice Exercises all competitive exams
Continue Reading »
100+ Mixture and Alligation MCQ Questions PDF for IBPS
Most importantly Mixture and Alligation multiple choice questions and answers with PDF for IBPS RRB PO. Aptitude MCQ Practice Exercises all Bank Exams
Continue Reading »