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Saturday, January 20, 2007
"GRE ALGEBRA QUESTION OF THE DAY"
If the ratio of 2a to b is 8 times the ratio of b to a, then b/a could be (A) 4 (B) 2 (C) 1 (D) 1/2 (E) 1/4
ans. is (D) 1/2
ReplyDeleteit is 2.
ReplyDelete(2a/b)=(8b/a)
after solving it (b^2/a^2)=4
=b/a=2
It is (D)1/2
ReplyDelete(2a/b) = (8b/a)
(b^2/a^2) = 2/8
b/a = 1/2
ans D
ReplyDelete2a/b=8b/a
a^2/b^2=4a/b=2
b/a=1/2