Question
Which of the following scientists invented steam
engine?Solution
James watt invented steam engine. Hence, option B is correct.
The area of four walls of a room is 128 cm2. If the length and breadth of the room were equal and the height of the room is 8 cm, then what i...
A bus passes two bridges of length 500 m and 325 m in 90 seconds and 60 seconds respectively. The length (in m) of the bus is
A cylindrical tank has a radius of 7 meters and a height of 10 meters. Calculate the volume of the tank. [Take π = 22/7 ]
The sum of the areas of a rectangle and a square is 161 cm². The breadth of the rectangle is 1 cm more than each side of the square. If the length of t...
Sides of a parallelogram are in the ratio 5:4. Its area is 1500 sq. units. Altitude on the greater side is 20 units. Altitude on the smaller side is:Â
- A rectangular swimming pool has a base area of 1200 m², and the volume of water in the pool is 48000 m³. Calculate the depth of the water in the pool.
Area of a square is 10% less than that of a rectangle whose length and breadth are 35 cm and 14 cm respectively. Find the perimeter of the square.
A pipe fills a cubical tank at the rate of 196 m3 per minute in 14 minutes. If a cylindrical tank having height same as the side of a cubical...
The average presence of students of a class in a College on Monday, Tuesday and Wednesday is 32 and on the Wednesday, Thursday, Friday and Saturday is 3...
If the areas of three adjacent faces of a rectangular box which meet in a corner are 12cm2, 15cm2 and 20cm2 respective...
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