536 Puzzles and Curious Problems

292 Answers

275. AN ARTIST'S PUZZLE

The canvas must be 10 in. in width and 20 in. in height; the picture itself
6 in. wide and 12 in. high. The margin will then be as required.

276. IN A GARDEN

The garden bed must have been 14 ft. long and 10 ft. in width.

277. COUNTING THE TRIANGLES

There are various ways of making the count, and the answer is 3S.

278. A HURDLES PUZZLE

The old answer is that you can arrange them as in A, and then, by adding
one more hurdle at each end, as in B, you double the area. No particular form

A 24-

24 11

.B

43 12

c

..D

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8

E

I'?>

was stated. But even if you admit that the original pen was 24 X 1 the answer
fails, for if you arrange the SO as in Figure C, the area is increased from 24 square
hurdles to IS6, with accommodation for 6S0 sheep with no extra hurdles. Or