DavidTutorexamPAL wrote:
Bunuel wrote:
Anke has 5 fewer candies than Conrad. If Anke gives Conrad 5 candies, Conrad will then have 4 times as many candies as Anke. How many candies does Janie have?
(A) 5
(B) 10
(C) 15
(D) 20
(E) 25
(A) 5
(B) 10
(C) 15
(D) 20
(E) 25
Depending on how confused we are by the question, we should either go for a Precise, calculation-oriented approach or an Alternative, answer-oriented approach.
The Precise approach:
(1) a = c -5
(2) c+ 5 = 4(a-5)
Substituting (1) into (2) gives a+10=4(a-5)
a+10=4a-20
3a=30
a=10
then c=15.
The
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