Ratio & Proportion, Alligation or Mixture

The salaries a of A, B and C are in the ratio of 1:2:3. The salary of B and C together is Tk. 6,000. By what percent is the salary of C more than that of A?

The ratio of boys and girls in a club is 3 : 2. Which of the following could be the actual number of members?

100 kg of solution A is mixed with 60 kg of solution B. If solution A has tin and copper in the ratio 1 : 4 and solution B has lead and tin in the ratio 3 : 2, then what is the amount of tin in the new solution?

Reena and Shaloo are partners in a business, Reena invest Tk. 35,000 for 8 months and Shallo invest Tk. 42,000 for 10 months. Out of a profit of Tk. 31,570, Reena's share is:

The present ratio of students to teachers at a certain school is 30 to 1. If the student enrollment were to increase by 50 students and the numbers of teachers were to increase by 5, the ratio of students would then be 25 to 1. What is the present number of teachers?

A salesman usually makes 45% profit on every TV he sells. During a sale, he reduces his margin of profit to 40%, while his sales increase by 10%, What is the ratio of his new profit to his usual profit?

A businessman has 1000 Kg of rice, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. How much Kg of rice did he sell at 18% profit?

In a cricket tournament 30,000 tickets were sold. One-fourth of the tickets were sold at Tk. 30 each, 1/3 were sold at Tk. 25 each, and the remaining tickets were sold at Tk. 20 each. How many tickets were sold at Tk. 20 each?

35% of Nabila's income is equal to 25% of Nuru's income. The ratio of their income is

When 120 guests guests take seat in auditorium, only 3/4 of the seats occupied. What is the total number of seats in the auditorium?

In a college, the ratio of foreign to local students is 3 : 7. If three-fourths of the local students are female and one-quarter of the foreign students is female. What fraction of the combined students is female?

The value of a fraction is 2/5. If the numerator decreased by 2 and the denominator increased by 1, the resulting fraction is equivalent to 1/4. Find the numerator of the original fraction.

Which of the following is the lowest ratio?

ধানে চাল ও তুষের অনুপাত 7 : 3 হলে, এতে শতকরা কী পরিমাণ চাল আছে?

The present age of Habib and Shikha are in the ratio of 6 : 4. Five years ago their ages were in the ratio of 5 : 3. How old is Habib now?

In a 729 liters mixture of milk and water, the ratio of milk to water 7 : 2. To get a new mixture containing milk and water in the ratio 7 : 3, the amount of water to be added is

The ratio of two numbers is 3 : 4 and their sum is 630. The smaller one of the numbers is -

The total age of A, B and C is 90 years. Ten years ago the ratio of their ages was 1 : 2 : 3. What is the present age of B?

In your wallet, there are Tk 500, Tk 200 and Tk 100. notes in the ratio 5 : 9 : 4, amounting to Tk 18,800. Find the number of each note respectively.

If the ratio of speed of doing work of three persons is 1 : 3 : 5, what is the ratio of time taken by these people to do the same amount of work?