Practice Ratio and proportion Questions and Answers

• In a college the ratio of boys and girls are in the ratio 3:4. 40% girls and 20% boys were absent. Find the girls present if the total number of students i...
• 6 years ago ratio of the ages of the two persons A and B was 5:3. 3 years hence the ratio of their ages will be 4:3. Find the present age of B.
• 5 years ago ratio of the ages of the two persons A and B was 3:1. 3 years hence the ratio of their ages will be 7:3. Find the present age of B.
• What is the fourth proportion of 13, 20 and 26?
• What is the fourth proportion of 16, 20 and 24?
• What is the fourth proportion of 17, 19 and 34?
• The ratio of zinc and copper in a brass pieces is 4:7. How much zinc will be there in 110 kg of such a piece?
• The ratio of zinc and copper in a brass pieces is 3:4. How much zinc will be there in 140 kg of such a piece?
• If A varies directly as B and inversely as C and A = 6, B = 3 and C = 5, what is the value of A when B = 5 and C = 2?
• If A varies directly as B and inversely as C and A = 8, B = 2 and C = 5, what is the value of A when B = 6 and C = 5?
• The ratio of number of boys and girls in a factory of 660 workers is 7:5. How many more girls should be joined to make the ratio 1:1?
• The ratio of number of boys and girls in a factory of 460 workers is 7:3. How many more girls should be joined to make the ratio 1:1?
• The ratio of number of boys and girls in a factory of 600 workers is 7:3. How many more girls should be joined to make the ratio 1:1?
• What is the ratio whose terms differ by 35 and the measure of which is 4/9?
• What is the ratio whose terms differ by 42 and the measure of which is 3/5?
• 70 percent of first number is equal to 50 percent of the second number. What is the respective ratio of the first number to the second number?
• 90 percent of first number is equal to 50 percent of the second number. What is the respective ratio of the first number to the second number?
• 80 percent of first number is equal to 40 percent of the second number. What is the respective ratio of the first number to the second number?
• 80 percent of first number is equal to 70 percent of the second number. What is the respective ratio of the first number to the second number?
• 60 percent of first number is equal to 40 percent of the second number. What is the respective ratio of the first number to the second number?
• 70 percent of first number is equal to 40 percent of the second number. What is the respective ratio of the first number to the second number?
• What must be added to each term of the ratio 3:7 so that it may equal to 5:6?
• What is the fourth proportional to 4, 9, 16?
• What is the fourth proportional to 2, 5, 12?
• What is the fourth proportional to 5, 9, 25?
• What is the mean proportion between 3 and 27?
• What is the mean proportion between 9 and 16?
• What is the mean proportion between 9 and 36?
• Find the third proportional to 12 and 48?
• Find the third proportional to 11 and 33?
• Find the third proportional to 12 and 42?
• Find the third proportional to 13 and 39?
• The ratio of two numbers is 2:5. If each number is decreased by 4, the ratio becomes 3:8. Find the smaller numbers.
• The ratio of two numbers is 3:5. If each number is decreased by 2, the ratio becomes 5:9. Find the smaller numbers.
• The ratio of two numbers is 3:5. If each number is decreased by 5, the ratio becomes 5:9. Find the smaller numbers.
• The ratio of two numbers is 5:11. If each number is decreased by 2, the ratio becomes 4:9. Find the smaller numbers.
• The ratio of two numbers is 6:7. If each number is decreased by 3, the ratio becomes 9:11. Find the smaller numbers.
• The ratio of two numbers is 6:7. If each number is decreased by 4, the ratio becomes 5:6. Find the smaller numbers.
• What is the fourth proportion of 18, 20 and 23?
• What is the ratio whose terms differ by 30 and the measure of which is 4/9?