Home > Class 11 Biology > Quizzes > Ratio and Proportion
Ratio and Proportion
Fast practice, instant feedback. Timer auto-submits when time’s up.
Avg score: 26% Most missed: “.Income of two companies A and B are in the ratio of 5 : 8. Had the income of co…”
Ratio and Proportion
Time left 00:00
25 Questions

1. The ratio between the three angles of a quadrilateral is 1 : 6 : 2 respectively. The value of the fourth angle of the quadrilateral is 45. What is the difference between the value of the largest and the smallest angles of the quadrilateral ?
2. .Income of two companies A and B are in the ratio of 5 : 8. Had the income of company A' been more by Rs. 25. lakhs - the ratio of their income would have been 5 : 4 respectively. What is-the income of company -˜B-™ ?
3. Smallest angle of a triangle is equal to two-third of the smallest angle of a quadrilateral. The ratio between the angles of the quadrilateral is 3 : 4 : 5 : 6. Largest angle of the triangle is twice its smallest angle. What is the sum of second largest angle of the triangle and largest angle of the quadrilateral?
4. The average age of a man and his son is 30 years. The ratio of their age four years ago was 10 : 3 respectively. What is the difference between the present age of the man and his son?
5. 15 years ago the average age of a family of four members was 40 years. Two children were bom in that span of 15 years. The present average age of the family remained unchanged. Among the two children who were bom in between the 15 years. If the older child at present is 8 years more than the younger one - what is the respective ratio between the present age of the older child and the present age of the younger child 7
6. When X is subtracted from the numbers 9 - 15 and 27 - the remainders are In continued proportion. What is the value of X?
7. A sum of money Is divided among A - B - C and D in the ratio of 3 : 5 : 9 : 13 respectively. If the share of C is Rs. 2412 more than the share of A - then what is the total amount of money of B and D together ?
8. The ratio between the age of a father and a son at present is 5 : 2 respectively. Four years hence the ratio between the age of the son and his mother will be 1 : 2 respectively. What is the ratio between the present age of the father and the mother respectively ?
9. One of the angles of a quadrilateral is thrice the smaller angle of a parallelogram. The respective ratio between the adjacent angles of the parallelogram is 4 : 5. Remaining three angles of the quadrilateral are in ratio 4 : 11 : 9 respectively. What is the sum of the largest and the smallest angles of the quadrilateral?
10. The ratio of the age of Tina and Rakesh is 9 : 10 respectively. Ten years ago the ratio of their age was 4 : 5 respectively. What is the present age of Rakesh ?
11. The respective ratio of - the present age of a mother and daughter is 7 : 1. Four years ago the respective ratio of their age was 19 : 1. What will be the mother-™s age four years from now?
12. The ratio of the number of students studying in school A - B and C is 5 : 8 : 4 respectively. If the number of students studying in each of the school is increased by 20% - 25% and 30% respectively - what will be the new respective ratio of the students in school A - B and C ?
13. The respective ratio between the present age of Ram - Rohan and Raj is 3 : 4 : 5. If the average of their present age is 28 years then what would be the sum of the age of Ram and Rohan together after 5 years?
14. The present ages of Ranjana and Rakhl are in the ratio of 15 : 17 respectively. After 6 years - the respective ratio between the age of RanjanaandRakhi will be 9 : 10.What will be the age of Ranjana after 6 years?
15. A sum of money is to be distributed among F - Q and R in the ratio 6 : 19 : 7. If R gives 200 from his share to Q - the ratio of P - Q and R becomes 3 : 10 : 3 - what is the total sum?
16. -™B-™ is 3 years older than A-™ and-™B-™ is also 3 years younger than -˜C-™.-™3 years hence - the respective ratio between the ages of A and G will be 4 : 5. .What is the sum of the present ages of A - B and C?
17. A vessel contains 64 litres of mixture of milk and water In the ratio 7 : 3 respectively. 8 litres of mixtureIs replaced by 12 litres of milk. What is the ratio of milk and water In the resulting mixture 7
18. In a college the number of students studying Arts - Commerce and Science are in the ratio of 3 : 5 : 8 respectively. If the number of students studying Arts - Commerce and Science is increased by 20% - 40% and 25% respectively - what will be the new ratio of students in Arts - Commerce and Science respectively ?
19. The age of Khushi and Jagriti are in the ratio of 5 : 8 respectively. After 8 years the ratio of their age will be 3 : 4. What is the difference in their age ?
20. A sum of money is divided among A - B - C and D in the ratio of 3 : 4 : 9 : 10 respectively. If the share of C is Rs. 2 - 580 more than the share of B - then what is the total amount of money of A and D together ?.
21. A certain amount was to be distributed among A - B and C in the ratio 2 : 3 : 4 respectively - but was erroneously distributed in the ratio 7 : 2 : 5 respectively. As a result of this - B got Rs. 40 less. What is the amount?
22. The ratio between the adjacent angles of a parallelogram is 2 : 3 respectively. Half the smaller angle of the parallelogram is equal to the smallest angle of a quadrilateral. Largest angle of quadrilateral is four times its smallest angle. What is the sum of largest angle of quadrilateral and the smaller angle of parallelogram?
23. If 7 boys and 2 men working together can do three times as much work per hour as a boy and a man together - what will be the respective ratio of work done by a boy and a man for the given time?
24. The respective ratio of the present age of Swati and Trupti is 4 : 5. Six years hence the respective ratio of their age will be 6 : What is the difference between their age?
25. The respective ratio between the present age of Ram and Rakeshis 6 : 11. Four years ago the ratio of their age was 1 : 2 respectively. What will be Rakesh-™s age after five years?