Question

Sudha is twice as old as Garima.10 years ago Sudha was three times as old as Garima.Find Sudha's present.

Answer 1

S = 2G

S-10 = 3(G-10)

Substitute 2G for S in the second equation and solve for G. Insert that value into the first equation to solve for S. Check by putting both values into the second equation.

Answer 2

Let garima age be x year
And shudha age be 2x
And 10 year ago,garima age be (x-10)
10 year ago,shudha age be (2x-10)
Then a/q,
(X-10)=3(2x-10)
X-10=6x-30
X-6x=-30+10
-5x=-20
x=-20/-5
x=4
Hence,the garima age be 4 years
And the shudha age be 2x=2×4=8 years.