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Numerical Ability
Age Problem
The ratio between the ages of nila and arjun is 2:5. After 8 years the ratio of theri ages will be 1:2 . The difference between their present age is
[A] 24 years
[C] 20 years
[B] 28 years
[D] 42 years
Read Solution (Total 3)
-
- Option A 24 years
2x+8/5x+8=1/2
solving this we get x=8
so the present ages is 2*8:5*8=16:40
Difference between the ages =40-16=24 - 12 years agoHelpfull: Yes(16) No(0)
- 24 is the answer
- 10 years agoHelpfull: Yes(2) No(0)
- let d ratio of their ages be 2x and 5x respectively .
now as per ques.
aftr 8 yrs:
2x+8/5x+5 = 1/2
2(2x+8)=5x+8
4x+16=5x+8
5x-4x=16-8
x=8
therefore nila's age= 2*8 = 16 yrs
arjun's age = 5*8 = 40 yrs
Diff. between their ages is = 40-16 = 24 yrs - 8 years agoHelpfull: Yes(0) No(0)
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