3821: Examine the following statements regarding a set of balls :
I. All balls are black.
II. All balls are white.
III. Only some balls are black.
IV. No balls are black.
Assuming that the balls can only be black or white, which two statements given above can both be true, but cannot both be false ? Choose the correct answer from the codes given below :
Codes :
(a) I and IV
(b) I and III
(c) II and III
(d) III and IV
3822: Match List I with List II and select the correct answer using the codes given below the Lists :
List I (Term)
I. Fiscal deficit
II. Budget deficit
III. Revenue deficit
IV. Primary deficit
List II (Explanation)
(A) Excess of Total Expenditure over Total Receipts
(B) Excess of Revenue Expenditure over Revenue Receipts
(C) Excess of Total Expenditure over Total Receipts less borrowings
(D) Excess of Total Expenditure over Total Receipts less borrowings and Interest Payments
Codes:
(a) I-C, II-A, III-B, IV-D
(b) I-D, II-C, III-B, IV-A
(c) I-A, II-C, III-B, IV-D
(d) I-C, II-A, III-D, IV-B
3823: Which countries played in the Lawn Tennis Davis Cup Final in the year 2004?
(a) Switzerland and United States of America
(b) Australia and Argentina
(c) Spain and United States of America
(d) Sweden and Belgium
3824: In the context of which of the following do some scientists suggest the use of cirrus cloud thinning technique and the injection of sulphate aerosol into stratosphere?
(a) Creating the artificial rains in some regions
(b) Reducing the frequency and intensity of tropical cyclones
(c) Reducing the adverse effects of solar wind on the Earth
(d) Reducing the global warming
3825: What are Rubies and Sapphires chemically known as?
(a) Silicon dioxide
(b) Aluminium oxide
(c) Lead tetroxide
(d) Boron nitride