Five years ago, Anu was thrice as old as Sonu. Ten years later, Anu will be twice as old as Sonu.
How old are Anu and Sonu?
sakshi295683:
Firstly let age of Sonu =X and age of anu =y and them ATQ 5yrs ago equations will be x-5 =3y -15 and second one will be xx+10=2y+20 value of y will be 20put in any equations then u will get value of X=50
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Let the present ages of Anu and Sonu be x and y.
ATQ,
• x - 10 = 3(y - 10)
x - 10 = 3y - 30
x - 3y = -20
x = 3y - 20 (equation 1)
• x + 10 = 2(y + 10)
x + 10 = 2y + 20
x - 2y = 10
(3y - 20) - 2y = 10 (from equation 1)
y - 20 = 10
y = 20 + 10
y = 30
Put y=30 in equation 1,
• x = 3(30) -20
x = 90 - 20
x = 70
Hence, the present ages of Anu and Sonu are 70 and 30 respectively.
Hope it helps!!! :)
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