The ages of Rahul and Haroonare in the ratio 5:7. Four years later the sum of there ages will be 56 years. What are their present ages?
Answers
EXPLANATION.
Let the age age of rahul be = 5x
Let the age of haroon be = 7x
After 4 years, later
Let the present age of rahul = ( 5x + 4 )
Let the present age of haroon be = ( 7x + 4 )
The sum of there ages will be = 56.
=> ( 5x + 4 ) + ( 7x + 4 ) = 56
=> 5x + 4 + 7x + 4 = 56
=> 12x + 8 = 56
=> 12x = 48
=> x = 4
Therefore,
Present age of rahul = 5x = 5(4) = 20 years.
present age of haroon = 7x = 7(4) = 28 years.
The ages of Rahul and Haroon are in the ratio 5:7. Four years later the sum of there ages will be 56 years. What are their present ages?
The ages of Rahul and Haroon are in the ratio 5:7
Let Rahul’s present age=5x
Haroon present age=7x
Four years later the sum of their ages will be 56 years. So according to the condition,
(5x+4)+(7x+4)=56
12x+8=56
12x=56–8
12x=48
x=48/12
x=4
Therefore Rahul’s present age =5×4=20years
Haroon’s present age=7×4=28years