2526: At a given time, two players are standing on a play-field. The cartesian coordinates of their locations are (20, 60) and (-40, -20) units. What is the distance between the players ?
(a) 60 units
(b) 80 units
(c) 100 units
(d) 140 units
2527: Devaluation of a currency means
(a) reduction in the value of a currency vis-a-vis major internationally traded currencies
(b) permitting the currency to seek its worth in the international market
(c) fixing the value of the currency in conjunction with the movement in the value of a basket of predetermined currencies
(d) fixing the value of a currency in multilateral consultation with the IMF, the World Bank and major trading partners
2528: Which of the following throws light on Harappan Culture?
(a) Archaeological excavations
(b) The script on copper sheets
(c) Rock edicts
(d) All of the above
2529: Which one of the following is a membrane that protects the developing embryo from desiccation ?
(a) Amnion
(b) Allantois
(c) Chorion
(d) Yolk sac
2530: The highest grade of coal, whose surface is shining and has the highest calorific value, is:
(a) Lignite
(b) Peat
(c) Bituminous
(d) Anthracite