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Q.

A grandfather is ten times older than his granddaughter. He is also 54 years older than her. Find their present age.


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a

 50,6

b

 60,6

c

 70,6

d

 80,6 

answer is B.

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Detailed Solution

Concept: We must first make the equation and solve it to determine the variables' ages in order to answer this problem.
Let x be the age of grand daughter and 10x be the age of grandfather.
Considering that he is 54 years older than her .
By given information ,
Question ImageThus the grandfather’s age = Question ImageAlso granddaughter’s age = x= 6 years
Hence, the correct option is 2.
 
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A grandfather is ten times older than his granddaughter. He is also 54 years older than her. Find their present age.