3656: In how many different ways can four books A, B, C and D be arranged one above another in a vertical order such that the books A and B are never in continuous position?

(a) 9
(b) 12
(c) 18
(d) 14
3657: The "dharma" and "rita" depict a central idea of ancient Vedic civilization of India. In this context consider the following statements :

1. Dharma was a conception of obligations and of the discharge of one's duties to oneself and to others.

2. Rita was the fundamental moral law governing the functioning of the universe and all it contained.

Which of the statements given above is/ are correct?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
3658: Which of the following statements best describes the term 'Scheme for Sustainable Structuring of Stressed Assets (S4A)', recently seen in the news?

(a) It is a procedure for considering ecological costs of developmental schemes formulated by the Government.

(b) It is a scheme of RBI for reworking the financial structure of big corporate entities facing genuine difficulties.

(c) It is a disinvestment plan of the Government regarding Central Public Sector Undertakings.

(d) It is an important provision in The Insolvency and Bankruptcy Code recently implemented by the Government.
3659: Consider the following:

The arrival of Babur into India led to the
1. introduction of gunpowder in the subcontinent
2. introduction of the arch and dome in the region's architecture
3. establishment of Timurid dynasty in the region

Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
3660: Which one of the following elements is alloyed with iron to produce steel which can resist high temperatures and also have high hardness and abrasion resistance ?

(a) Aluminium

(b) Chromium

(c) Nickel

(d) Tungsten