1Write true or false: 25 parts out of 100 parts is called 25%.
2Write true or false: \( \frac{3}{4} \) written as a percentage is 25%.
3Write true or false: 0.45 written as a fraction in lowest terms is \( \frac{9}{20} \).
4Write true or false: to change a fraction or a decimal into a percentage you divide by 100 and put the % sign.
5Write each percentage as a fraction in its lowest terms: (a) 22% (b) 57% (c) 63% (d) 1.5% (e) 0.5%
6Write each of these as a percentage: (a) \( \frac{2}{5} \) (b) \( \frac{3}{20} \) (c) 0.45 (d) 1.8 (e) 0.03
7Find each of these values: (a) 85% of Rs 400 (b) 20% of Rs 1500 (c) 25% of 1000 l (d) 15% of 2 km (e) 75% of 1280 m
8Out of 500 students, 200 like to play football. (a) What percentage like to play football? (b) What percentage do not like to play football?
9Out of a 2 km road, 500 m has been blacktopped. What percentage of the road has been blacktopped?
10In a school, 800 students take part in different games. Of them, 20% get a gold medal, 30% get a silver medal and 35% get a bronze medal. (a) How many students get a gold medal? (b) How many get a silver medal? (c) How many get a bronze medal?
11For your own school, write down the number of girls, the number of boys and the total number in each class. Work out the percentage of girls and the percentage of boys in every class.
12In the same school of 800 students, 20% got gold, 30% got silver and 35% got bronze. What percentage of the students got no medal at all?
13Sarita scored 45 marks out of a full 60 in a mathematics test. What percentage did she score?
14A farmer has 250 kg of paddy. If 12% of it is kept aside for seed, how many kg are kept for seed and how many kg are left?
15Which is bigger, \( \frac{7}{8} \) or 0.9? Show it by changing both into percentages.