Express the following as decimal fractions.

(i) 27%

(ii) 6.3%

(iii) 32%

(iv) 7.5%

(v) 1/8%

Write each of the following as percentage.

(i) 7/25

(ii) 14/625

(iii) 5/8

(iv) 0.8

(v) 5/8

(vi) 0.8

(vii) 11 : 80

(viii) 111 : 125

(ix) 13 : 75

(x) 15 : 16

(xi) 0.18

(xii) 7/125

Convert the following percentages to fractions and ratios.

(i) 25%

(ii) 2.5%

(iii) 0.25%

(iv) 0.3%

(v) 125%

Find:

(i) 22% of 120

(ii) 25% of Rs 1000

(iii) 25% of 10 kg

(iv) 16.5% of 5000 metre

(v) 135% of 80 cm

(vi) 2.5% of 10000 ml

Find the number a, if

(i) 8.4% of a is 42

(ii) 0.5 of a is 3

(iii) of a is 50

(iv) 100% of a is 100