X * total revenue = Y * volume as total revenue is same volume = X / Y we need to find countries with same volume. if X/Y = const then the plot will be a straight line passing through the origin. so in this case we are looking for pair of countries that will fall in the line that can pass through the origin, only pair that can form the line passing through origin is UK and Spain.
Question 2 :
X * total revenue = Y * volume total revenue = Y * volume / X as volume is same, the ratio of total revenues of India and singapore will be (totat revenue - India)/(total revenue singapore) = (Y/X) - India / (Y/X)-Singapore (Y/X) - India = 1/9 (Y/X)-Singapore = 9/20 (totat revenue - India)/(total revenue singapore) = (1/9)/(9/20) = 20/81 ~ 1/4 (total revenue singapore) = 4 * (totat revenue - India)
Question 3 :
During 2010, 27 * 2R = ARDT (India) * V 36 * R = 6 * V ARDT(India) = (27 * 2 * 6) / 36 = 27/3 = 9 Current value of ARDT(India) = 1 so % change = [ ( 9 - 1 ) / 1 ] * 100 = 800%
An outgoing batch of students wants to gift PA system worth Rs.4200 to their school. If the teachers offer to pay 50% more than the students, and an external benefactor gives three times teachers’ contribution, how much should the teachers donate?
A student gets an aggregate of 60% marks in five subjects in the ratio 10 : 9 : 8 : 7 : 6. If the passing marks are 50% of the maximum marks and each subject has the same maximum marks, in how many subjects did he pass the examinaiton?