What should come in place of the question mark ? in the following number series ?
For the following questions answer them individually
The average of four consecutive odd numbers A,B, C and D respectively is 24. What is the product of B and D ?
The area of a square is thrice the area of a rectangle If the area of the square is 225 sq cm and the length of the rectangle is 15 cm what is the difference between the breadth of the rectangle and the side of the square ?
A truck covers a certain distance in 12 h at the speed of 70 km/h. What is the average speed of a car which travels a distance of 120 km more than the truck in the same time ?