Sandeep is four times as old as his son .After 5 years the sum of their age will be 80 find the present age.
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let the age be x
sandeep
4x
son
x
after five years
sandeep
4x+5
son
x+5
(4x+5)+(x+5)=80
5x+10=80
5x=80-10
5x=70
x=70/5
x=14
age of Sandeep is 4x= 4×14= 56
age of son is x = 14
sandeep
4x
son
x
after five years
sandeep
4x+5
son
x+5
(4x+5)+(x+5)=80
5x+10=80
5x=80-10
5x=70
x=70/5
x=14
age of Sandeep is 4x= 4×14= 56
age of son is x = 14
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