These questions are based on the pie charts which represent the shift in water usage between 2006 and 2009; based on a survey conducted by Central Water Commission.
Water Usage in 2006 (In Trillion Litters )

Water Usage in 2009 (In Trillion Litters )

Water Usage in 2006 (In Trillion Litters )

Water Usage in 2009 (In Trillion Litters )

Question 1: If the ratio of processing cost for water for industrial, energy and domestic usage is 3 : 5 : 2, what is the ratio of processing cost for above mentioned usage in 2006 to that in 2009?
(a) 0.68
(b) 0.72
(c) 0.60
(d) 0.77
(a) 0.68
(b) 0.72
(c) 0.60
(d) 0.77