Latest Elitmus Aptitude Question SOLUTION: In a strange twist of hearts, P politicians of a country agreed to an average donation of Rs. D each. Q of these politicians, who had pledged an average of Rs. A never donated the

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In a strange twist of hearts, P politicians of a country agreed to an average donation of Rs. D each. Q of these politicians, who had pledged an average of Rs. A never donated the pledged money. Which of the following expressions represents the percent of pledged money that was actually donated?

(a)100(PD/QA)
(b)100(QA/PD)
(c) 100-100(QA/PD)
(d) 100PD-100(QA/PD)

Asked In Elitmus pavan (11 years ago)

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Sumit Rawal  (11 years ago)

Let the total money initially be 100
Money denoted by 1 politician of p type rs D
money denoted by p politicians of p type rs PD
Money denoted by 1 politician of q type rs A
Money denoted by q politicians of q type rs Q
Since QA denoted no money
and money is denoted by PD
So using the formula of ratio and proportion x(i-(y/x)^n
we get total amount of money denoted is 100(1-QA/PD)^n=100-100(QA/PD)

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taashi  (11 years ago)

answer is c

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