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Numerical Ability
Age Problem
Present ages of P and Q are in the ratio 4 : 5 respectively. Six years hence the ratio becomes 7 : 8. What is the sum of the present ages of P and Q?
1) 18 years
2) 30 years
3) 36 years
4) Can't be determined
5) None of these
Read Solution (Total 3)
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- Let the present ages of P and Q are 4x and 5x
6 years hence the ages are 4x+6 and 5x+6 in the ratio 7 : 8
4X + 6 = 7
-------- ---
5x + 6 = 8
:- 8(4x+6) = 7(5x+6)
==> 32x + 48 = 35x + 42
==> 3x = 6
:= x = 2
The present ages of P and Q are (4*2) and (5*2) = 8 and 10
the sum of the present ages of P and Q 8 + 10 = 18 years - 8 years agoHelpfull: Yes(5) No(0)
- 18 years.
- 8 years agoHelpfull: Yes(1) No(0)
- at present,
(4x+6)/(5x+6)=7/8=>x=2
p=4x=8 and Q=5x=10
p+q=18yrs - 4 years agoHelpfull: Yes(0) No(0)
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