Question
Which US-based company has developed 'smart guns' that
use biometric identification technology to restrict firearm use only to authorized persons?Solution
A US-based company Biofire has developed ‘smart guns’ that use biometric identification, which would only allow authorised persons to fire.
The length of a rectangle is twice its breadth. If its length is decreased by 6 cm and breadth is increased by 6 cm, the area of the rectangle is increa...
The difference between the length and breadth of a rectangle is 13 m. If its perimeter is 186 m, then its area is
The two parallel sides of a trapezium are 27 cm and 13 cm respectively. If the height of the trapezium is 8 cm, then what is its area in m²?
A rectangular park is 50 m long and 40 m wide. A path of uniform width is built inside the park along the boundary. The area of the path is 344 m². Fin...
What is the difference between (in m2) the area of a circular field of radius 21 metres and area of a rectangular piece of land having its di...
Total surface area of Cuboid is 1875 cm ² and the Sum of its Length, breadth and height is 45cm, and then find out the sum of the squares of its length...
The volume of a cube is given as 8×(x+3)3 m3. The length of a rectangle is twice the side length of the cu...
The radii of two right circular cylinders are in the ratio 3 : 2 and the ratio of their volumes is 27:16. What is the ratio of their heights?
What is the difference between (in m2) the area of a circular field of radius 21 metres and area of a rectangular piece of land having its di...
The sum of the perimeters of a square and a rectangle is 120 metres. If the sum of the length and breadth of the rectangle is 28 cm, then find the area ...
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