CAT
Exam
Category
7. What is the value of (2a+2b)/(2a-b), given that b ≠ 0 and
(〖 a〗^2-ab+2b^2)/(a^2+ab+4b^2 )=1/3?
A. 4 B. 4/3 C. ¾ D. 3
Read Solution (Total 4)
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- 4 . simple calculation
- 7 years agoHelpfull: Yes(2) No(0)
- I think the answer would be 3.
- 7 years agoHelpfull: Yes(0) No(0)
- 4
As,a=b - 6 years agoHelpfull: Yes(0) No(0)
- (a^2-ab+2b^2)/(a^2+ab+4b^2)=1/3
3a^2-3ab+6b^2=a^2+ab+4b^2
2a^2-4ab+2b^2=0
(a-b)^=0
a=b
so
(2a+2b)/(2a-b)
2a+2a/2a-a
4a/a
4
answer is 4 - 4 years agoHelpfull: Yes(0) No(0)
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