Randheer > (Kunal + Debu) ------ ... (i) (Kunal + Shankar) > Randheer -----... (ii) Sonal > Shankar ------ ... (iii) Neha > Randheer ------ ... (iv) From (i), (ii), (iii) and (iv) we can not conclude who optained the highest mark hence, Data are inadequate.