2106: A private company is faced with the problem of setting up a cement plant. Which of the factors given below should be taken into consideration for this venture?
(1) Abundant electricity
(2) Abundant limestone/dolomite
(3) Abundant labour force
(4) Abundant gas
(5) Accessibility to transportation
(6) Abundant coal
Choose the correct answer from the codes given below :
(a) 1,2 and 3 only
(b) 1, 2 and 4 only
(c) 1, 2 and 5 only
(d) 3, 4 and 6 only
2107: A student has 60% chance of passing in English and 54% chance of passing in both English and Mathematics. What is the percentage probability that he will fail in Mathematics ?
(a) 12
(b) 36
(c) 4
(d) 10
2108: A candidate to become a member of Lok Sabha should not be less than:
(a) 21 years
(b) 25 years
(c) 30 years
(d) 35 years
2109: What are Rubies and Sapphires chemically known as?
(a) Silicon dioxide
(b) Aluminium oxide
(c) Lead tetroxide
(d) Boron nitride
2110: Examine the following relationships among members of a family of six persons A, B, C, D, E and F.
I. The number of males equals that of females.
II. A and E are sons of F.
III. D is the mother of two, one boy and one girl.
IV. B is the son of A.
V. There is only one married couple in the family at present.
Which one of the following inferences can be drawn from the above ?
(a) A, B and C are all females
(b) A is the husband of D
(c) E and F are children of D
(d) D is the grand-daughter of F