Mrs. Garg is thrice as old as her daughter Rohini. If the difference of their ages is 34, find her (Mrs. Garg) age.
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Step-by-step explanation:
w = 3*d
w - 4 = 4*(d-4)
Now we rearrange a bit so they both just have w on one side
w = 4*d - 12
Replace that w with the right side of the first equation
3*d = 4*d - 12
Solve for d
d = 12
And plug that into either original equation to get w
w = 36
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