1. The diameter of the driving wheel of a bus is 280 cm. How many revolutions per minute must the Wheel make in order to keep a speed of 66 kmph? (4)
- (1)150
- (2) 180
- (3) 145
- (4) 125
- (5) None of these
2. Find the ratio of the areas of the in circle and circum circle of a square. (1)
- (1) 1 : 2
- (2) 3 : 2
- (3) 2 : 1
- (4) 4 : 5
- (5) None of these
3. A cord is in the form of a square enclosing an area of 44 cm^2.If the same cord is bent into a circle, then find the area of that circle. (5)
- (1) 40 cm square
- (2) 78 cm square
- (3) 68 cm square
- (4) 52 cm square
- (5) 56 cm square
4. The area of a rhombus is 144 cm square. One of its diagonals is twice the other. The length of the shorter diagonal is? (1)
- (1) 12 cm
- (2) 11 cm
- (3) 10 cm
- (4) 14 cm
- (5) None of these
5. The base of a parallelogram is twice its height and its area it 128 cm square. Find the difference between its height and the base. (3)
- (1) 6 cm
- (2) 7 cm
- (3) 8 cm
- (4) 9 cm
- (5) 10 cm