Quantity 1: If a student scores 25% marks then he is failed by 210 marks. But if he score 55% marks than he is passed with 240 marks. Find the passing percent?

Quantity 2: A man saves a certain part of his income every month, so that he can purchase a car in one year. By what % he must increase in his saving, so that he can purchase the same car in nine month?

- Quantity I: What will be the difference between compound interest and simple interest for 4 years on a principal of Rs.20480 at the rate of 25% per annum? Quantity II: Rs 8079
- Quantity I. Two pipes A and B can fill a tank in 12 minutes and 16 minutes respectively. If both the pipes are opened simultaneously, after how much time should B be closed so that the tank is full in 9 minutes? Quantity II. Two pipes A and B can fill a tank in 24 minutes and 48 minutes respectively. If both the pipes are opened simultaneously, after how much time should B be closed so that the tank is full in 18 minutes?
- The sum of the cost price of articles A and B is Rs.500 while the ratio of their cost prices is 2:3 respectively. Quantity I: If article A is marked 52% above its cost price and sold after offering a discount of 25% then find the profit earned on selling article A. Quantity II: Articles A and B are sold at profit of 30% and loss of 5% respectively. Find the overall loss earned on selling these two articles.
- What is the population of village A in 2021? Quantity I: Population of village A in 2020 was 60,000 and it increased by 15% in 2021 over 2020. Quantity II: 72,000
- How many litres of liquid A was contained by the Can initially? Quantity I. A Can contains a mixture of two liquids A and B in the ratio 7: 5. When 9 litres of mixture are drawn off and the Can is filled with B, the ratio of A and B becomes 7: 9 . Quantity II. A Can contains a mixture of two liquids A and B in the ratio 4:1. When 10 litres of mixture are drawn off and the Can is filled with B, the ratio of A and B becomes 2: 3
- Quantity I: A vessel contains a mixture of milk and water in the ratio of 7 : 5. If 9 litre of mixture is sold and replaced by same amount of water then the new mixture contain milk and water in the ratio 7 : 9. Find initial amount of water? Quantity II: A vessel is full of 63 litre of milk. If 9 litre of milk is taken out and replace by water. Further 7 litre of mixture is taken out and replace again with water then find the amount of water at the end?
- Quantity I. In what time will Rs. 48,000 amount to Rs. 52,920 @ 5% compound interest? Quantity II. In what time will Rs. 50,000 amount to Rs. 53060.40 @ 4% compound interest payable half-yearly?
- I. 3x² + 17 x - 28 = 0 II. 3 y² -22 y + 24 = 0
- Quantity I: A student multiplied a number by 3/5 instead of 5/3 . What is the % error in the calculation? Quantity II: The population of a town is 2,34,000. 4/9 of them are males . If 30% of males are married and number of married females is 2.5 times of married males. Find the percent of married females out of total females in the town?
- What is the minimum possible number of chocolates a boy can buy, if there must be atleast one chocolate of each kind? Quantity I. The shop has three different kinds of chocolates costing Rs.2, Rs.5, Rs. 10. The boy spends total Rs. 120 on the chocolates. Quantity II. The shop has three different kinds of chocolates costing Rs.3, Rs.6, Rs. 11. The boy spends total Rs. 145 on the chocolates.

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