506: The 'Fortaleza Declaration', recently in the news, is related to the affairs of

(a) ASEAN
(b) BRICS
(c) OECD
(d) WTO
507: India is a member of which of the following?

1. Asian Development Bank

2. Asia-Pacific Economic Cooperation

3. Colombo Plan

4. Organization for Economic Cooperation and Development (OECD)

Select the correct answer using the code given below:

(a) 1 and 3 only
(b) 1, 2 and 3 only
(c) 2 and 4 only
(d) 1, 2, 3 and 4
508: otal time taken by a person in going to a place by walking and returning on cycle is 5 hours 45 minutes. He would have gained 2 hours by cycling both ways. The time taken by him to walk both ways is

(a) 6 hours 45 minutes
(b) 7 hours 45 minutes
(c) 8 hours 15 minutes
(d) 8 hours 30 minutes
509: Which one of the Chola kings conquered Ceylon ?

(a) Aditya I

(b) Rajaraja I

(c) Rajendra

(d) Vijayalaya
510: Which of the following pairs is correctly matched ?

(a) Dewan-i-bandagani : Tughlaq

(b) Dewan-i-Mustakhraj : Balban

(c) Dewan-i-Kohi : Alauddin Khilji

(d) Dewan-i-Arz : Muhammad Tughlaq