846: Which of the following pairs is not correctly matched?
(a) Reinhold Messner : Computer Technology
(b) Harlow Shapley : Astronomy
(c) Gregor Mendel : Hereditary Theory
(d) Godfrey Hounsfield : CT Scan
847: In how many maximum different ways can 3 identical balls be placed in the 12 squares (each ball to be placed in the exact centre of the squares and only one ball is to be placed in one square) shown in the figure given below such that they do not lie along the same straight line?
(a) 144
(b) 200
(c) 204
(d) 216
848: If 15 pumps of equal capacity can fill a tank in 7 days, then how many extra pumps will be required to fill the tank in 5 days?
(a) 6
(b) 7
(c) 14
(d) 21
849: Match List I (Ancient site) with List II (Archaeological finding) and select the correct answer using the codes given below the lists :
List I-------------------List II
(Ancient site)----------(Archaeological finding)
A. Lothal--------------1. Ploughed field
B. Kalibangan----------2. Dockyard
C. Dholavira-----------3. Terracotta replica of a plough
D. Banawali------------4. An inscription comprising ten large sized signs of the Harappan script
Codes:
A B C D
(a) 1 2 3 4
(b) 2 1 4 3
(c) 1 2 4 3
(d) 2 1 3 4
850: Which one of the following is a man made cereal NOT found in nature?
(a) Dwarf wheat
(b) Hybrid maize
(c) Triticale
(d) Soya bean