Question 12
Two snails start together at A and crawl around the rectangular grid garden in opposite directions. The faster snail travels twice as fast as the slower. Where do they meet for the first time after leaving A?

Source correction: The original diagram labels the upward snail slow and the rightward snail fast. These directions give Q (B); the printed source key T (D) is wrong. Figure labels: chậm = slow; nhanh = fast.

Source correction: The original diagram labels the upward snail slow and the rightward snail fast. These directions give Q (B); the printed source key T (D) is wrong. Figure labels: chậm = slow; nhanh = fast.