What is the age of Teja? A: Four years ago, Raju was as old as Teja is at presen

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Question
What is the age of Teja? A: Four years ago, Raju was as old as Teja is at present. B: Sita?s present age is two times of Raju?s present age. C: The average age of Teja and Sita is 19 years.
Options
A. Any two statements are sufficient to give answer
B. Only C is sufficient
C. All of three statements are necessary to give answer
D. Even using all the three statements answer cannot be found

Correct Answer

All of three statements are necessary to give answer

Explanation

From the given statements A, B & C

Let the present age of Teja = P

Raju present age = P + 4

Sita's present age = 2(P + 4)

Average of ages of Sita & Teja = 19

=> (2P + 8 + P)/2 = 19

= 3P + 8 = 38

=> P = 30/3 = 10

Hence, the present age of Teja = P = 10 yrs.

Therefore, by using all the three statements A, B & C we can find the age of Teja.