For the following questions answer them individually
In what ratio must tea worth of Rs.10 per kg be mixed with tea worth Rs.15 per kg, so that the resultant mixture costs Rs.12 per kg?
The ratio of the volume of two cylinders is 13:1 and the ratio of their heights is 13:9. If the area of the base of the second cylinder is $$154 \ cm^{2}$$, then what will be the radius of the first cylinder?
Mohit and Rohit undertook a work for Rs.2200. Mohit alone can do that work in 10 days and Rohit alone can do the same work in 12 days. If they work together, Then what will be the difference in the amount they receive?
A man multiplied a number by $$\frac{8}{5}$$ instead of $$\frac{5}{8}$$, what is the percentage error in the calculation?
2 years ago the ratio of X and Y's age was 7:5 and after 2 years their age will be in the ratio 9:7. What is the present age of Y?
The simple interest received on a sum at the rate of 8 percent per annum is $$\frac{2}{5}$$ of the sum. What is the time period?
Vikas gave 3 examinations. The respective ratio of marks scored by him in the 3 examinations is 3 : 5 : 6. The respective ratio of maximum marks of the 3 examination is 7 : 11 : 10. If he scored 50 percent marks in total, then in how many examination has he scored marks more than 50 percent?
Selling price of a glass is Rs.1287 and loss percentage is 22 percent. If selling price is Rs.1848, then what will be the profit percentage?
If 2 times of selling price is equal of 3 times of cost price, then what is the profit percentage?
The following table shows the expenditure of a company from the year 2018 to 2022. What is the average amount of tax per year which the company had to pay during this period?