Question

HELPPP FASTT

The points O, P, Q and R all lie on the same line segment, in that order, such that the
ratio of OP : PQ: QR is equal to 4:5: 2. If OR = 11, find QR.

Answer 1

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Answer:

QR = 2

Explanation:

The sum of ratio units is 4+5+2 = 11, corresponding to the total length OP +PQ +QR = OR. OR is also 11, so each ratio unit stands for 11/11 = 1 length unit.

The number of ratio units associated with QR is 2, so the length of QR is 2.