2046: How many numbers lie between 300 and 500 in which 4 comes only one time?
(A) 99
(B) 100
(C) 110
(D) 120
2047: A worker reaches his factory 3 minutes late if his speed from his house to the factory is 5 km/hr. If he walks at a speed of 6 km/hr, then he reaches the factory 7 minutes early. The distance of the factory from his house is
(a) 4 km
(b) 5 km
(c) 6 km
(d) 7 km
2048: Which organelle in the cell, other than nucleus, contains DNA ?
(a) Centriole
(b) Golgi apparatus
(c) Lysosome
(d) Mitochondrion
2049: BCG vaccination is to be given to a new born child:
(a) Immediately after birth
(b) Within 48 hours
(c) Within seven days
(d) Within six months
2050: Which one of the following legislations does not deal with the protection of environment ?
(a) The Water (Cess) Act, 1977
(b) The Forest (Conservation) Act, 1980
(c) The Public Liability Insurance Act,1991
(d) The Port Laws Amendment Act, 1997