Madhavi1990 wrote:

Isn't root 20 = 2 root 5; where did 4.5 come from?

so A tells us: p b/w 2 root 5 and B) says p is b/w root 20 and 16/3--

COMBINED: p between 5.55 and 2 into root 5 ; leaving us with P which could 5,4,3,2--> How is C sufficient?

It looks like E ..

Would appreciate some explanation here

2root(5)=2*2.22 =4.44 approximately so p lies between 4.44 and 5.33

Since p can take any value from given range St I is important to find unique value of p

Hence Option C is correct

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