3656: If X + 2Y = 2X + Y, then X2 / Y2 is equal to

(a) 0
(b) 1
(c) 2
(d) 4
3657: Match List I with List II and select the correct answer using the codes given below the Lists :

List I
I. WTO
II. IDA
III. IMF
IV. IBRD

List II
(A) Provides loans to address short-term balance of payment problems
(B) Multi-lateral trade negotiation body
(C) Sanction of soft loans
(D) Facilitating lendings and borrowings for reconstruction and development

Codes:
(a) I-B, II-C, III-D, IV-A
(b) I-B, II-C, III-A, IV-D
(c) I-C, II-B, III-D, IV-A
(d) I-C, II-B, III-A, IV-D
3658: The heart of human embryo starts beating

(a) in the first week of its development

(b) in the third week of its development

(c) in the fourth week of its development

(d) in the sixth week of its development
3659: What explains the eastward flow of the equatorial counter-current?

(a) The Earth's rotation on its axis
(b) Convergence of the two equatorial currents
(c) Difference in salinity of water
(d) Occurrence of the belt of calm near the equator
3660: Which among the following countries has the largest population?

(a) Indonesia
(b) Japan
(c) Pakistan
(d) Sudan