The ratio of the prices of two books was 16:23. Two years later when the price of the first has increased by 10% and that of the second by Rs.477, the ratio of the prices becomes
11:20. Find the original process of the two books.

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?