1. A father is older than his son by 25years. 3years ago, the ratio of their ages was 3:1. Find their present ages

Let x represent the son's age

Let y represent to father's age

Two equations given

x + 25 = y

(y - 3) / 3 = (x - 3)

Sub 1st equation into the second and solve

((x+25) -3) / 3 = (x - 3)

x= 15.5 (son's age)

y= 40.5 (father's age)

8 2/3 is the answer

step-by-step explanation: just use a calculator

∠lno ≅ ∠lnm

∠oln ≅ ∠mln

step-by-step explanation:

given   that triangle lno is congruent to triangle lnm.

we have to fill up the blanks in the given question.

according to above order of congruency   kept in mind we can say that

∠lno ≅ ∠lnm

∠oln ≅ ∠mln

ln ≅ ln due to common in both.

hence, by sas congruency,

the side angle side rule   states that if two sides and the included angle of one triangle are congruent to another triangle, then these two triangles are congruent.