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Q.2 Convert each part of the ratio to Percentage:
(a) 3:1
(b) 2:3:5
(c) 1 : 4
(d) 1:2:5
Answer :

(a) 3 : 1
Sum of the ratio parts = 3 + 1 = 4
Percent of first part = \(\frac{3}{4} \) × 100 = 75%
Percent of second part = \(\frac{1}{4} \) × 100 = 25 %
(b) 2:3:5
Sum of the ratio parts = 2 + 3 +5 = 10
Percent of first part = \(\frac{2}{10} \) × 100 = 20%
Percent of second part = \(\frac{3}{10} \) × 100 = 30 %
Percent of second part = \(\frac{5}{10} \) × 100 = 50 %
(c) 1 : 4
Sum of the ratio parts = 1 + 4= 5
Percent of first part = \(\frac{1}{5} \) × 100 = 20%
Percent of second part = \(\frac{4}{5} \) × 100 = 80 %
(d) 1:2:5
Sum of the ratio parts = 1+ 2 +5 = 8
Percent of first part = \(\frac{1}{8} \) × 100 = 12.5%
Percent of second part = \(\frac{2}{8} \) × 100 = 25 %
Percent of third part = \(\frac{5}{8} \) × 100 = 62.5%