For the following questions answer them individually
A truck covers three equal distances of 100 km at the speed of 200 km/hr, 300 km/hr and 600 km/hr, Find the average speed of the truck for the whole journey.
An article is sold for Rs.560 after two successive discounts of 30% and 20%. What is marked price of the article?
A sum of money is to be divided among P, Q and R in the ratio 7 : 9 : 4. If p gets Rs. 1500 more than R then find the difference between the shares of P and Q.
If the square of product of three sides of the triangle is 1024 units and the area of its circumcircle is 16$$\pi$$. What is the are of the given triangle?
