ABCD on a map

Dinesh went from place A to place B and from there to place C. A is 7.5 km from B, and B is 12.7 km from C. Ayub went from place A to place D and from there to place C. D is 9.3 km from A, and C is 11.8 km from D.

Who traveled more, and by how much?

Correct answer:

w = Ayub
x =  0.9 km

Step-by-step explanation:

$$\begin{gathered} A-B-C \\ d=7.5+12.7=20.2\text{km} \\ a=9.3+11.8=21.1\text{km} \\ a>d \\ w=A_{y}ub \end{gathered}$$

$x=a-d=21.1-20.2=0.9\text{km}$

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