Instructions

Each problem, consists of a problem followed by two Statements T and II. Decide whether the data in the statements are sufficient to answer the question.

Question 118

G, P and S are animal species. What is the average life span in years of S?
I. The average life span of S is twice that of P and $$\frac{4}{5}$$ that of G.  
II. The average life span of G is 30 yr longer than that of P and 10 yr longer than that of S

Solution

Statement 1:

S=2P 

S=(4/5)G 

we cannot determine.

Statement 2:

 G=P+30 

G=S+10 

we cannot determine.

Both statements:

S=(4/5)G and G=S+10 So,

S=(4/5)(S+10)

(1/5)S=8

 S=40

So, we can determine using both the statements together.


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