Q.2 Convert each part of the ratio to Percentage:

(a) 3:1

(b) 2:3:5

(c) 1 : 4

(d) 1:2:5

(a) 3:1

(b) 2:3:5

(c) 1 : 4

(d) 1:2:5

(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%