Solutions
From statement I, Average weight of Arun, Suraj and Vinay =
Arun + Suraj + Vinay =

kg …………(i)
Average weight of Raju and Pratap =
Raju + Pratap =

kg …………(ii)
According to given information,
Raju’s weight = 68 kg
Now, from equation (i),
Pratap’s weight = 144-68 = 76 kg
Again, Suraj’s weight = 78 kg
and Vinay’s weight = 46 kg
From equation (i), Arun’s weight = 204 – (46+78)
= 204 – 124
= 80 kg
Hence, Suraj’s weight is second highest which is 78 kg
From statement II, Average weight of Arun, Suraj, Vinay and Raju =
Arun + Suraj + Vinay + Raju =

kg

Arun’s weight =
=

kg
But, we cannot find the weight of Pratap as there is no information given about Pratap. Hence, statement II alone is not sufficient.