For the following questions answer them individually
The length and breadth of a rectangle are changed: by +20% and —10% respectively. Then the percentage change in the area of the rectangle is.
A starteda business with a capital of ₹ 6400. Later B joined the business with a capital of ₹ 8000. At the end of the year they shared the profit in the ratio 6:5. After how many months B has joined the business?
A person buys an article with 15%discount on its marked price. He makes a profit of 15% by selling it at ₹ 3910, Then the marked price of the article (in rupees) is
If the cost price of 20 books is equal to the selling price of 16 books, then the percentage of profit is
A, B and C started a business investing a sum of money in the ratio of 8 : 9 : 10, After three months B contributed another $$\frac{1}{3}rd$$ of his capital towards business while C withdrew $$\frac{1}{5}th$$ of his capital after 6 months. If they get an annual profit of ₹ 2,37,300 then C's share of profit in rupees is.
A, B and C started a business with some investments. At the end of the year, in the profit, the share of B is ₹ 5000 more than that of A and C’s share is ₹ 2000 more than B. If the total profit is ₹ 1,11,000, then the share of C, in theprofit in rupees is
A and B started business together. B's capital is ₹ 700 more than that of A. But B invested his capital for 9 months andA invested for 10 months. If A and B share theprofit in the ratio 8:9, then the capital of B (in rupees) is.
Two pipes A and B can fill an empty tank in 6 hours and 8 hours respectively. After opening both of them for t hours the pipe B is closed and the pipe A filled the rest of the tank in 4 hours. Then t =
Two pipes can fill an empty tank in 36 minutes and 45 minutes respectively. If both pipes are opened simultaneously, then how much time is needed in minutes to fill tank?