Question : The length of two parallel sides of a trapezium are 15 metres and 20 metres. If its height is 22 metres, then what is the area of the trapezium?

Option 1: 295 metre²

Option 2: 385 metre²

Option 3: 425 metre²

Option 4: 315 metre²

Question : A train can completely cross a 1000-metre-long bridge in 15 seconds. It can completely cross another 1300-metre-long bridge in 19 seconds. What is the length of the train?

Option 1: 125 metres

Option 2: 200 metres

Option 3: 150 metres

Option 4: 175 metres

Question : The ratio of the area of an equilateral triangle and that of its circumcircle is:

Option 1: $2\sqrt3:2\pi$

Option 2: $4:\pi$

Option 3: $3\sqrt3:4\pi$

Option 4: $7\sqrt2:2\pi$

Question : A 1000-metre-long train is running at the speed of 72 km/hr. If it crosses a bridge in 85 seconds, then what is the length of the bridge?

Option 1: 800 metres

Option 2: 700 metres

Option 3: 950 metres

Option 4: 750 metres

Question : The surface area of a sphere is 2464 cm². Find the radius of the sphere. [Use $\pi=\frac{22}{7}$ ]

Option 1: 14 cm

Option 2: 28 cm

Option 3: 42 cm

Option 4: 40 cm