920. What characters can be added here so that each character contains a part of the previous character? a) 暦 -> _ -> _ -> 的 b) 菓 -> _ -> _ -> 脚

Answer:

a) 暦 -> 昆 -> 皆 -> 的

暦  REKI, koyomi - history

昆  KON - elder brother, later, insect

皆  KAI, mina  - all

的  TEKI, mato - -ish, target

b) 菓 -> 棋 -> 期 -> 脚

菓  KA - cake, fruit

棋  KI - go, shogi, Japanese chess

期  KI, GO - time, period, term

脚  KYAKU, KYA, ashi - leg