A quick pair of questions.
一对快速的问题。
(a) Who are 2B/37 better known as?
(b) Who 'composed' 91π/216000?
Source: GCHQ Puzzle book
资料来源：GCHQ益智书
3 个解决方案
#1
27
2B/37 (base 16) = 43/55 (base 10) = 43*4/55*4(base 10) = 172/220 (base 10) = AC/DC (base 16)
2B / 37（基数16）= 43/55（基数10）= 43 * 4/55 * 4（基数10）= 172/220（基数10）= AC / DC（基数16）
#2
26
For B)
对于B）
It was John Cage
91 x (pi) / 216000 rad will give 4'33"
John composed the piece 4'33"这是约翰凯奇91 x（pi）/ 216000 rad将给4'33“约翰组成的那块4'33”
#3
-2
Here it is:
这里是：
(a) Who are 2B/37 better known as?
（a）谁知道谁是2B / 37？
2B/37 base (16)
2B / 37 base（16）
(b) Who 'composed' 91π/216000?
（b）谁'组成'91π/ 216000？
John Cage. (He ‘composed’ the piece 4'33". (0°)4'33" is 91π/216000 radians.)
约翰凯奇。 （他''组成'4'33“。（0°）4'33”是91π/ 216000弧度。）
#1
27
2B/37 (base 16) = 43/55 (base 10) = 43*4/55*4(base 10) = 172/220 (base 10) = AC/DC (base 16)
2B / 37（基数16）= 43/55（基数10）= 43 * 4/55 * 4（基数10）= 172/220（基数10）= AC / DC（基数16）
#2
26
For B)
对于B）
It was John Cage
91 x (pi) / 216000 rad will give 4'33"
John composed the piece 4'33"这是约翰凯奇91 x（pi）/ 216000 rad将给4'33“约翰组成的那块4'33”
#3
-2
Here it is:
这里是：
(a) Who are 2B/37 better known as?
（a）谁知道谁是2B / 37？
2B/37 base (16)
2B / 37 base（16）
(b) Who 'composed' 91π/216000?
（b）谁'组成'91π/ 216000？
John Cage. (He ‘composed’ the piece 4'33". (0°)4'33" is 91π/216000 radians.)
约翰凯奇。 （他''组成'4'33“。（0°）4'33”是91π/ 216000弧度。）