Q1: 25+30+35=90

90/2=45

Divide 2 becos 2 sets

J+A

J+B

B+A

names repeated 2 x = 2 sets

Q2) 6 becos

thrice means 3 :1

twice means 3 : 6

6units -1unit = 5units (120)

(Charles:Edward)=3:1 , later Edward collect 120 more and he got twice as many as Charles so 3:6 =6units -1unit