Answers

2016-03-03T10:50:07+05:30
Set proportions 
Large weight/Small weight = Large diameter/ Small diameter 

5920/740 = x/5 

Cross multiply 
740x = 5(5920) 
740x = 29600 

Divide both sides by 740 
740x/740 = 29600/740 
x = 40 cm
radius =20 cm

0
u hav taken x as a diameter.... so diameter is equal to 40...... then radius will b 20...
yes
then answer will be 20