there are 160 birds in a tree. 45 of them fly away from the tree and hence their number decreases by 45. What is the percentage of decreasein their numbers?
A library take charge of rs. 5 for issue a book for one day and rs.1 thereafter. If ritu has taken 2 books for x days and y be the total amount of paid.write the linear variable in two variable for the situation. Plot the graph and find the amount to be paid for 5 days
A lady parks her car on the 6th floor and took a lift up 17 floors to the finance department. She went down 9 floors to the tax department. On which floor is the lady on