1211: In an office, the number of persons who take tea is twice the number of persons who take only coffee. The number of persons who take coffee is twice the number of persons who take coffee is twice the number of persons who take only tea.
Consider the following statements :
1. The sum of the number of persons who take either tea or coffee or both is four times the number of persons who take both coffee and tea.
2. The sum of the number of persons who take only coffee and those who take only tea is twice the number of persons who take both and coffee. Which of the statements given above is/ are correct?
1212: Sendeep Pandey, the winner of Raman Magsaysay Award, is mainly an activist in
(a) prevention of child marriages
(b) promotion of communal harmony
(c) environmental protection
(d) education and livelihood projects for Dalits
1213: A table has three drawers. It is known that one of the drawers contains two silver coins, another contains two gold coins and the third one contains a silver coin and a gold coin. One of the drawers is opened at random and a coin is drawn. It is found to be a silver coin. What is the probability that the other coin in the drawer is a gold coin ?
(a) 0.25
(b) 1.00
(c) 0.50
(d) 0.60
1214: What are the possible limitations of India in mitigating the global warming at present and in the immediate future ?
1. Appropriate alternate technologies are not sufficiently available.
2. India cannot invest huge funds in research and development.
3. Many developed countries have already set up their polluting industries in India.
Which of the statements given above is/are correct ?
(a) 1 and 2 only
(b) 2 only
(c) 1 and 3 only
(d) 1, 2 and 3
1215: The working of the quartz crystal In the watch is based on the
(a) Photoelectric Effect
(b) Johnson Effect
(c) Piezo-electric Effect
(d) Edison Effect