Convert each part of ratio to percentage :
(a) 3:1
(b) 2:3:5
(c) 1:4
(d) 1:2:5
Solution-
Convert ratio to percentage
(1) 3 : 1
% of first part = 3/ (1+3)×100=75%
% of second part = 1(1+3)×100=25%
(b) 2 : 3 : 5
% of first part =2/ (2+3+5)× 100 = 20%
% of second part=3/ (2+3+5)× 100 = 30%
% of third part =5/ (2+3+5)×100 = 50%
(C) 1 : 4
% of first part =1/ (1+9) × 100 = 20%
% of second part =4/(1+9) × 100 = 80%
(d) 1 : 2 : 5
% of first part =1/ (1+2+5) × 100=12.5%
% of second part =2/ (1+2+5)×100=25%
% of third part =5/ (1+2+5) × 100=62.5%