a : b : c,therefore b^2 = ac
1) c = 2a
c is +ve when a is +ve and c is -ve when a is -ve. So we cannot say whether c is +ve or -ve.
2) b ^2 = 32
Therefore ac = 32.
From above we just know that a and c have the same sign. Both can be +ve or both can be -ve. So we still cannot say for sure whether c is +ve or -ve.
Take both statement together and the only thing we know that a and c have the same sign. But we do not know whether these are +ve or -ve.
So both together are also insufficient.
Choose E.
C positive?
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Is it a complete question? agrandh01 wrote:If a is to b is to c, is c positive?
1) c=2a
2) b^2=32
OA IS E
c = ?- VK
I will (Learn. Recognize. Apply)
I will (Learn. Recognize. Apply)
