GRE Exam Numerical Ability Profit and Loss

franky sells a calculator to wren at a gain of 17% and wren sells it to john at a loss of 25%.if john pays $1842.75 for it,what did franky pay for it?

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$ 2100 is the answer
12 years agoHelpfull: Yes(2) No(1)

s.p of franky=((c.p of franky)*117)/100
then
c.p of wren is= s.p of franky
s.p of wren=((c.p of wren)*75)/100
,, =(((c.p of franky)*117)/100)*75/100
s.p of wren is=c.p of john.
then,
1842.75=(((c.p of franky)*117)/100)*75/100
now,
c.p of franky=1842.75*100*100/117*75
=$2100.
12 years agoHelpfull: Yes(1) No(0)

GRE Other Question

30% of men are more than 25years old and 80% of the men are less than or equal to 50yrs old.20% of all men above 50 years play football ,what % of the football players are less than or equal to 50years/ mark anthony buys two cd's for $380 and sells one at a loss of 22% and other at a gain of 12%.if two cd's are sold at the same price then the cost of the two cd's is?