1995 AMC 8 Problem 11

Below is the professionally curated solution for Problem 11 of the 1995 AMC 8, from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 1995 AMC 8 solutions, or check the answer key.

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Concepts:distance rate and timeperimeterrelative speed

Difficulty rating: 1030

11.

Jane can walk any distance in half the time it takes Hector to walk the same distance. They set off in opposite directions around the outside of the 1818-block area as shown. When they meet for the first time, they will be closest to

AA

BB

CC

DD

EE

Solution:

The perimeter of the region is 1818 blocks, so when Jane and Hector meet they have together walked 1818 blocks. Since Jane walks twice as fast, she covers 1212 blocks and Hector covers 6.6.

Starting from the middle of the bottom edge, Hector walks 66 blocks (to E,E, then up to DD), and Jane walks 1212 blocks (to A,A, up to B,B, then across the top to DD). They meet at D.D.

Thus, the correct answer is D .

Problem 11 in Other Years

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