Quiz-1

Question 1

Time: 00:00:00
Age of Umesh will be 4 times the age of Reena in 6 years from today. If ages of Umesh and Mahesh are 7 times and 6 times the age of Reena respectively, what is present age of Umesh?

64 years

64 years

30 years

30 years

48 years

48 years

42 years

42 years

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Question 2

Time: 00:00:00
Ramesh's age after 16 years will be 5 times his age 4 years back. What is the present age of Ramesh?

9 years

9 years

14 years

14 years

16 years

16 years

21 years

21 years

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Let x be the Ramesh age By the given data (x+16) after 16 years 4 years back 5(x-4) so (x+16)=5(x-4) --> x= 9

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Question 3

Time: 00:00:00
The average age of 10 students and their teacher is 15 years. The average age of the first seven students is 15 yr and that of the last three is 11 yr. What is the teacher's age?

33 years

33 years

30 years

30 years

27 years

27 years

24 years

24 years

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Question 4

Time: 00:00:00
The present ages of Aman and Nina are 59 and 37 years, respectively. What was the ratio of the ages of Nina and Aman 13 years ago?

3:2

3:2

46:25

46:25

12:23

12:23

8:3

8:3

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Question 5

Time: 00:00:00
Average age of a family of 4 members was 19 years, 4 years back. Birth of a new child kept the average age of the family same even today. How old is the child today?

4 years

4 years

1 year

1 year

2 years

2 years

3 years

3 years

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Average=4*4=16 ago=19-16=3yrs

total age of 4 members=19*4=76yrs in present total age of 4 members=76+4*4=92yrs let child\'s age be x yrs now, family has 5 members so, according to question average age=(average age of 4 members+age of child)/5 19=(92+x)/5 x=3yrs

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Question 6

Time: 00:00:00
The present ages of A and B are 42 and 36 years, respectively. After K years, the ratio of ages of B to A will be 15:17. What is value of K?

9 years

9 years

12 years

12 years

5 years

5 years

3 years

3 years

Once you attempt the question then PrepInsta explanation will be displayed.

present age of A and B is 42 and 36. After k year Age of A= 42+k Age of B=36+k Ratio of ages of B to A after K year is 15:17 so we can write----- 42+k/36+k = 17/15 630+15 k= 612+17 k 2 k= 18 k=9

after k yrs age of b/age of a=15/17 36+k/42+k=15/17 om solving we get k=9

A age = 42 years B age = 36 years the ratio of B:A = 15:17 After k years the ages will be A age = 42+x ; B age = 36+x ; Therefore (42+x)/(36+x)=17/15 So the x is 9 years

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Question 7

Time: 00:00:00
The average age of a group of 4 friends is 36 years. The youngest friend amongst them is 6 years old. What was the average age of the group at the time of the birth of the youngest friend?

36 years

36 years

38 years

38 years

32 years

32 years

40 years

40 years

Once you attempt the question then PrepInsta explanation will be displayed.

4 friends average age =36 Total age= 4*36=144 6 years ago , the age of the all friends is 6 years less. So, 4*6=24 Total age 6 years ago=144-24=120 So, average age at birth of the youngest one is 120/3=40 years.

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Question 8

Time: 00:00:00
At present, the ratio between the ages of Amit and Dhiraj is 5 : 4. After 6 years, Amit’s age will be 26 years. What is the age of Dhiraj at present?

12 years

12 years

16 years

16 years

19 ½ years

19 ½ years

21 years

21 years

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Question 9

Time: 00:00:00
The combined age of husband and wife on their 20th wedding anniversary was twice than it was at the time of wedding. If the husband is 3 years older than his wife. How old was he at the time of his marriage?

29 years

29 years

38.5 years

38.5 years

21.5 years

21.5 years

32 years

32 years

None of these

None of these

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Question 10

Time: 00:00:00
Neha's mother was four times her age 12 years ago. She will be twice as old as Neha 12 years from now. What is the present age of Neha's mother ?

49 years

49 years

57 years

57 years

60 years

60 years

65 years

65 years

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