Men agree to purchase a gift for Rs. D. If three men drop out how much more will each have to contribute towards the purchase of the gift/A. D/(M-3)B. MD/3C. M/(D-3)D. 3D/(M2-3M)

Interview Candidate
Jun 3rd, 2005
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deepa thomas

Nov 15th, 2012

given D total money to purchase gift.
so initially share of each person=D/M,where M is the total no of persons.
After 3 men drop,
share increase to=D/(M-3)

deepa

Nov 15th, 2012

initial contribution = D/M
final contribution = D/(M-3)
Difference = D/(M-3) - D/M
=>Difference =D[{M - (M-3)}/{M X (M-3)}]
=>Difference= 3D/[M(M-3)]