Ratio, proportion, partnership and direct/inverse variation.
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Q1 · Ratio and Proportion · EASY
The ratio of milk to water in a mixture is 7:3. If the mixture contains 28 litres of milk, how many litres of water does it contain?
Q2 · Ratio and Proportion · MEDIUM
A, B and C started a business by investing Rs 24,000, Rs 32,000 and Rs 36,000 respectively. At the end of the year, the total profit was Rs 46,000. What is C's share in the profit?
Q3 · Ratio and Proportion · MEDIUM
If 15 workers can complete a work in 20 days, how many days will 25 workers take to complete the same work?
Q4 · Ratio and Proportion · HARD
The ratio of ages of father and son is 9:2. After 6 years, the ratio will become 13:4. What is the present age of the son?
Q5 · Ratio and Proportion · EASY
The ratio of boys to girls in a class is 4:5. If there are 36 students in total, how many boys are there?