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The age of the two friends were in the ration of 6:5. If the sum of their ages is 55. Then after how many years their ratio will become 8:7?
a) 11 b) 7 c) 10 d) 12
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- 6X+5X=55; x=5; so age of first friend is 30 and of second is 25; So solve (30+y)/(25+y)=8/7 => y=10...... kyun kya hua?? :) :) :)
- 12 years agoHelpfull: Yes(11) No(1)
- the ages of frnds will be 30 yrs and 25 yrs...
(30+x)/(25+x)=8/7
hence ans will be 10 years... - 12 years agoHelpfull: Yes(4) No(1)
- their ages ratio were given means past ratio 6:5
and their present ages sum is =55 how could you all equate these equations???
plz explain in details - 7 years agoHelpfull: Yes(0) No(0)
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