For the following questions answer them individually
The pie chart given below shows the sales of 7 different companies. The total sales of all these 7 companies are 1440. The sale of a particular company is shown in terms of degree with respect to the total sales of all these 7 companies.
What is the ratio of average sale of A and B to the average sale D and E?
The alcohol and water in a mixture are in the ratio of 4 : 5 respectively. 20 litre water is added to it. If the ratio of alcohol and water in the new mixture is 1 : 3 respectively, then what is the total quantity of the alcohol in the new mixture?
A person bought some pens at the rate of 25 for a rupee and sold them at the rate of 20 for a rupee. What is the profit percentage?
Study the following table and answer. In which year did the company spent maximum on fuel and transport?
The marked price of a calculator is Rs. 1600. It is sold at a discount of 28 percent. If the cost price of the calculator is Rs.700, then what is the value of profit?
The difference between simple interest and compound interest (compounding of interest is done annually) on a certain sum of money for 3 years at the rate of 20 percent per annum is Rs. 192. What is the sum?
Two taps P and Q can fill a tank alone in 10 hours and 12 hours respectively. If the two taps are opened at 9 a.m., then at what time should the tap P be closed to completely fill the tank at exactly 3 p.m.?
The perimeter of the top of a rectangular table is 42 metre and its area is 108 metre$$^2$$. What is the length of its diagonal?