If P and Q are on the line AB, and AP: OB = 2:3, AQ: QB = 3:4, and PQ = 3, then the length of AB is () If P and Q are on the line AB, and AP: OB = 2:3, AQ: QB = 3:4, and PQ = 3, then the length of AB is () If P and Q are on the line AB, and AP: Pb = 2: AQ: QB = 3: and PQ = 3, then the length of AB is () Subject to this question, the above is invalid!

If P and Q are on the line AB, and AP: OB = 2:3, AQ: QB = 3:4, and PQ = 3, then the length of AB is () If P and Q are on the line AB, and AP: OB = 2:3, AQ: QB = 3:4, and PQ = 3, then the length of AB is () If P and Q are on the line AB, and AP: Pb = 2: AQ: QB = 3: and PQ = 3, then the length of AB is () Subject to this question, the above is invalid!

A______________ P__ Q___________________ B
AP:PB=2:3
AP=(2/5)AB
AQ:QB=3:4
AQ=(3/7)AB
PQ=AQ-AP=(3/7)AB-(2/5)AB=(1/35)AB=3
AB=3÷(1/35)=105