Home / Solution to the quiz

Solution to the quiz

RRB ALP CBT 2 #1 Mock Test Series Get Now Free Download Now
RRB Junior Engineer Complete Free Study Material PDF Free Download Now
IB Security Assistant Complete Free Study Material PDF Free Download Now
NIACL AO Complete Free Study Material PDF  Free Download Now
SSC CGL,CPO,GD 2018 Study Material & Book Free PDF Free Download Now

 

Print Friendly, PDF & Email

Q1. Option B
Solution:
Present ratio P:M ==>2:9
After 10years P:M=4:11
Then
(2x+10)/(9x+10) = 4/11
22x+110=36x+40
X=5.
Then Mother‘s present age=9*5=45yrs.
After 15 yrs Mother‘s age is=60yrs.

Q2. Option C
Solution:
Given
A:B=5:x –1
A = C – 18 —2
C + 9 = 47 =>C=47-9=38yrs.
A – B = C —3
From 2 A=38-18=20yrs.
From 1 20/B=5/x==> B=4x
From 3 4x-20=38
X=14.5.

Q3. Option A
Solution:
Let 16 yrs ago the age of mine was=x
(x+24)/(8x+24)=1/3
X=48/5=9.6
My present age is 9.6+16=25.6
Present age of my Uncle =8*9.6+16=92.8
Required ratio =(25.6-8)/(92.8-8) =17.6/84.8=11:53.

Q4. Option D
Solution:
A+B=11(A-B)
A:B=6:5
According to 2nd condition
6x+5x+10=13(6x-5x)=5
A‘s age =6*5=30.

Q5. Option C
Solution:
F+M+S=42*3=126
The age of family after 6 years =36*5=180
The age of bride after 6 years=180-(126+18+5)
=180-149==>31yrs
Age of bride at the time of marriage=31-6=25yrs.

Q6. Option B
Solution:
From option 54-45=1/11(45+54)
9=9
Condition satisfied

Q7. Option D
Solution:
M – L = L – N
(M + N) = 2L
Given (M + N) = 60
then 2L=60==>L=30
But can‘t able to find M value
Therefore, cannot be determined.

Q8. Option C
Solution:
Let daughter‘s age = A and mother‘s age = B
Given: 3A+B = 75 and A+2B = 80
Solving A, we will get A = 14.

Q9. Option B
Solution:
Let P‘s age = X
R 12 yrs older than P so R‘s age = x+12
Q is thrice as old as P so Q‘s age = 3x
x + (x+12) + 3x = 57
=> 5x = 45
x = 9
P‘s age = 9
Q‘s age = 3x = 27
R‘s age = x+12 = 21
Q-R=27-21=6yrs.

Q10. Option A
Solution:
Epsi age =7-2=5yrs
Let Sharmi age be x years.
Then (x-10)/6=5
X=40

Q11. Option B
Solution:
Let Arun‘s present age be x years. Then, father‘s present age =(x + 3 x) years = 4x
years.
Then (4x+8)=5/2(x+8)
8x+16=5x+40
3x=24
X=8.
Required ratio, (4x+16)/(x+16) =48/24=2.

Q12. Option A
Solution:
Let the daughter‘s age be x years.
Then, father‘s age = 4x.
Mother‘s age = 4x – 10; Son‘s age = x + 6.
So, x + 6 = (4x-10)/2 ==> x=11.
Therefore Mother‘s age = 4X – 10= 44 – 10 = 34 years

Q13. Option C
Solution:
Present age of Thomas‘s son = x years
Thomas‘s present age = 3x years
Thomas‘s father‘s present age = 3x*2=6x
X+3x+6x=33 1/3 *3
10x=100/3*3==>x=10
Then diff between Thomas son‘s and father‘s age is
60-10=50yrs

Q14. Option D
Solution:
Father‘s age was 28 years when my sister was born.
My sister‘s age was 4 years when my brother was born.
Therefore, father‘s age was 28+4=32 years when my brother was born.

Q15. Option D
Solution:
Can‘t be determined

Download Quant Power Bank (1000+ Pages)  Free Download Now
Download English Power Book (2000+ Pages)  Free Download Now
Reasoning & GI Booster -Power Bank Book (1200+ Pages) Free Download Now

 

error: