The book means:
At 25°C of the light indigo, fill 37 mL of light green solution to obtain a full erlenmeyer of magenta solution.
Middle cupboard:
C2H5NC.2h2O
C:3 H:9 N:1 O:2
Code: 3912
Test tube locker:
(Red + Green + Blue + Purple) * (Light purple + White + Light green + Orange)
(100+250+25+75)*(15+50+35+100) = 450*200=90000 (last 0 not necessary)
Mix up all liquids available (including water) to dissolve the room's lock.
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