MCQ: Ratio and Proportion - 2 - SSC CGL MCQ

The total number of students in three classes of a school is 297. The ratio of the number of students in 6th class to that in 7th class is 5 : 4 and the ratio of the number of students in 6th class to 8th class is 2 : 3. What is the number of the students in the class which has the highest number of students?

A, B and C bought mangoes in the ratio of 8 : 5 : 3 and ate some over the week in the ratio of 5 : 2 : 1 respectively. If A was left with 50% of his mangoes, who was left with least number of mangoes?

The students in three batches of a tuition teacher are in the ratio 3 : 4 : 6. If 240 students are increased in each batch, the ratio changes to  6 : 7 : 9. What was the initial number of students in all three batches?

A container has 125 liters of milk. 25 liters milk is replaced by water. This process is done one more time. What is the quantity of water in the resultant mixture?

A sum of Rs. 5085 is divided among A, B and C such that if Rs.  45, Rs.  145 and Rs. 245 be diminished from their shares respectively, the remainders shall be in the ratio of 52 : 19 : 22 respectively. What is the share of A?

A vessel contains 60 liters mixture of milk and water in a ratio 5 : 1 respectively. What quantity of the mixture must be replaced with water so the ratio of the milk to water in the resultant mixture becomes 1 : 1?

In 2020, the number of persons in villages A, B and C were in the ratio 2 : 4 : 7 respectively. In 2021 there is an increment of 100%, 50% and 14.29% in the population of villages A, B and C respectively. What is the ratio of the population of villages A, B and C respectively in 2021?

A mixture contains wine and water in the ratio of 5 : 2 respectively and another mixture contains them in the ratio of 4 : 5 respectively. How many liters of the latter must be mixed with 35 liters of the former so that the resultant mixture must contain equal quantities of wine and water?

The ratio of salary of A and B is 5 : 7 and that of B and C is 3 : 7. The salary of A is Rs. 45000 and C spends 5% of his salary on rent. What is the rent of C?

The weights of two friends A and B are in the ratio of 5 : 7 respectively. After some time, A’s weight increased by 20% and the combined weight of both of them increased by 16.67%. If B’s new weight is 40 kg, what was the old weight (in kg) of A?

The ratio of the marks of a student in Hindi to that in English is 7 : 10. If the maximum marks of both the subjects are the same and he got 49% marks in Hindi, what is his percentage in both the subjects?

A person distributed some chocolates among his four children and kept some with him. The eldest three children got chocolates in the ratio 5 : 3 : 4. The total number of chocolates with the father and the youngest child is the same as the total chocolates with the three eldest children. The ratio of chocolates with father and that with all the children is 1 : 2. If the youngest child has 12 chocolates with him, what is the total number of chocolates?