Answer: 
Step-by-step explanation:
In order to find the answer, let's work backwards to find the original. We have to do the opposite to get to the Raju's age. We will start with his fathers age. (44) Then we will subtract five from it so that it will be divisible by three. 
44 - 5 = 39
Then we just have to divide by 3. 
44/3 = 13
His age is 13 years old.
 
        
             
        
        
        
The number that is being multiplied by the variable ( the letter) so like if you have 2X the 2 is the coefficient
        
             
        
        
        
The ladder is 24 ft far up the wall and 26 ft long.
the foot of laddder=base=b=10ft
length of ladder=hypotenuse= =?
=?
height ladder up the wall=altitude=x= -2 =?          (according to condition)
-2 =?          (according to condition)
by using Pythagoras's theorem
          =
= +
+
 ⇒        =
= +
+
⇒          =
=  -4
-4 +100
+100
⇒        
⇒         =26ft
=26ft
also    x= -2=26-2=24ft
-2=26-2=24ft
         putting the obtained values in Pythagoras's theorem 
 ⇒       
 ⇒       676=100+576
 ⇒       676=676
         hence the given solution is correct.
To learn more about Pythagoras's theorem, click here
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