TCS
Company
X is 6 years younger to Y.After 5 years the ratio of ages of X and Y is 1:2. Now X's
father is 20 years older to Y and Y' father is 30 years more than X. What is the age of X and Y together?
(a) 12 (b) 8 (c) 18 (d) 6
Read Solution (Total 10)
-
- Fathers ages are irrelevant. From the question we get X+6=Y. Also after 5 years means (X+5)/(Y+5)=1/2. Solve both you get X=1,Y=7. So X+Y=8.
- 14 years agoHelpfull: Yes(17) No(0)
- x=y-6 and x+5:y+5=1:2.
From these two equations x=1 and y=7.
Sum of x & y=1+7=8years - 14 years agoHelpfull: Yes(6) No(0)
- y-x=6
and (x+5):(y+5)=1:2
so y-2x=5
so y=7 and x=1
ans is 8 - 14 years agoHelpfull: Yes(3) No(0)
- given: X=Y-6
(X+5):(Y+5)=1:2
OR, (Y-6+5)/(Y+5) =1/2
OR, Y=7
SO, X=Y-6=7-6=1
Y=7,X=1
X+Y=8
Ans:(b) - 14 years agoHelpfull: Yes(2) No(0)
- x+6=y solving y we get y=7 and x=1 -->x+y=8
5 years later
x+5:y+5=1:2 ans :b
y-1:y+5=1:2 - 14 years agoHelpfull: Yes(1) No(2)
- x+6=y
5 yrs later x+5:y+5=1:2 hence x+y=8 ans:b
y-1:y+5=1:2
solving y=7 and x=1 - 14 years agoHelpfull: Yes(1) No(0)
- the ratio of ages=1:2.
assuming the age of x is k,nd y iz 2k.
so 5 yrs ago the age of x= k-5,nd y=2k-5.
now 5 yrs ago x was 6 yrs younger than y,so we can write,
2k-5=(k-5)+6
so k=6.
therefore x=6 nd y=12.
the age total is 18 - 14 years agoHelpfull: Yes(1) No(8)
- ans is 6
- 14 years agoHelpfull: Yes(0) No(11)
- X=6
Y=6X
(x+5)/(6x+5)=1:2
x=.8
y=4.8
5.6==6 - 14 years agoHelpfull: Yes(0) No(14)
- x+6=y solving y we get y=7 and x=1 -->x+y=8
5 years later
x+5:y+5=1:2 ans :b
y-1:y+5=1:2 - 14 years agoHelpfull: Yes(0) No(2)
TCS Other Question