506: Which one among the following South Asian countries has the highest population density?
(a) India
(b) Pakistan
(c) Nepal
(d) Sri Lanka
507: A thief steals a case and 5 persons witness that they have seen him stealing. The thief says that he will bring 50 persons who will say that they have not seen him stealing. Which of the following statements is correct?
(a) The thief cannot be believed without proper witness
(b) The witness given by 50 persons is invalid as they have not seen him stealing
(c) The witness given by 5 persons must be believed as they have given the witness first
(d) The witness given by 50 persons is more correct as they are more in number
508: The Reserve Bank of India (RBI) acts as a bankers' bank. This would imply which of the following?
1. Other banks retain their deposits with the RBI.
2. The RBI lends funds to the commercial banks in times of need.
3. The RBI advises the commercial banks on monetary matters.
Select the correct answer using the codes given below :
(a) 2 and 3 only
(b) 1 and 2 only
(c) 1 and 3 only
(d) 1, 2 and 3
509: Which of the following types is used by computed tomography employed for visualization of the internal structure of human body ?
(a) Magnetic resonance
(b) X-rays
(c) sound Waves
(d) Radioisotopes
510: A grocer bought 10 kg of apples for Rs. 81 out of which one kg was found rotten. If he wishes to make a profit of 10%, at what rate per kg. he should sell it?
(a) Rs. 9.00
(b) Rs. 9.90
(c) Rs. 10.10
(d) Rs. 10.20