871: A and B start from the same point and in the same direction at 7 a.m. to walk around a rectangular field 400 m x 300 m. A and B walk at the rate of 3 km/hr and 2.5 km/hr respectively. How many times shall they cross each other if they continue to walk till 12 : 30 p.m?
(a) Not even once
(b) Once
(c) Twice
(d) Thrice
872: Which of the following is contained in the Concurrent List?
(a) Forests
(b) Education
(c) Police
(d) Agriculture
873: Assertion (A):
A piece of copper and a piece of glass are heated to the same temperature. When touched, thereafter, the copper piece appears hotter than the glass piece.
Reason (R):
The density of copper is more than that of glass.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is NOT a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
874: In the Presidential election in India, every elected member of the Legislative Assembly of a State shall have as many votes as there are multiples of one thousand in the quotient obtained by dividing the population of the State by the total number of the elected members of the Assembly. As at present (1997) the expression population here means the population as ascertained by the
(a) 1991 Census
(b) 1981 Census
(c) 1971 Census
(d) 1961 Census
875: Assertion (A):
According to statistics, more female children, are born each year than male children in India.
Reason (R):
In India, the death rate of a male child is higher than that of the female child.
(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is not a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true