Daughter's Present Age Calculation

Let D be the daughter's current age.

We know that 3 years ago, her age was 4.

This gives us the equation:

$D - 3 = 4$

Solving for D:

$D = 4 + 3 = 7$

So, the daughter is currently 7 years old.

Wife's Present Age Calculation

Let W be the wife's current age.

The wife's age is 5 times the daughter's age.

Using the daughter's age, D = 7:

$W = 5 \times D$

$W = 5 \times 7 = 35$

The wife is currently 35 years old.

Ravi's Present Age Calculation

Let R be Ravi's current age.

Ravi is 5 years older than his wife.

Using the wife's age, W = 35:

$R = W + 5$

$R = 35 + 5 = 40$

Therefore, Ravi's present age is 40 years.