Percentage

21 If in an examination, the marks obtained by Kiara is 20% less than that of Mariya, then marks obtained by Mariya is how much per cent more than marks obtained by Kiara?

22 If the price of sugar falls down by 20%, by how much per cent must a householder increase it's consumption, so that not to decrease his expenditure on this item?

23 The ratio of male and female in a city is 7 : 8 and the percentage of children among male and female is 25% and 20% respectively. If the number of adult female in the city is 156800 what is the total population?

24 A Parliamentary election was contested by two people. The winning candidate received 57 percent of all votes cast and was elected by a margin of 42,000 votes. The total number of votes cast is:

25 Total marks of an examination is 500. A got 10% less than B, B got 25% more than C and C got 20% less than D. If A got 360 marks what percentage of marks was obtained by D?

26 Two tailors X and Y are paid to wages of ₹ 550 per week by their employer. If X is paid 120 percent of the sum paid to Y, how much is Y paid per week?

27 Two students appeared at an examination. One of them secured 9 marks more than the other and his marks was 56% of the sum of their marks. The marks obtained by them are

28 To pass, a student must score a 30% marks. Find the maximum marks set for the examination if he gets 30 marks and fails by 30 marks:

29 The difference between 78% of a number and 59% of the same number is 323. What is 62% of same number?

30 Ankita, a shopkeeper, marks the prices of his goods at 20% higher than the original price, after that, he allows a discount of 5%. What was her profit or loss ?