Mensuration (Part-15)

Total Questions: 24

21. A 9 cm solid metallic cube and a solid metallic cuboid having dimensions 5 cm, 13cm, 31cm are melted and recast into a single cube. How much (in Rs.) is the cost to polish the new cube at the 2 rate of Rs.10 per cm². [SSC CPO 24/11/2020 (Morning)]

Correct Answer: (b) 11,760
Solution:

22. A hexagon is 1944√3m². What will be the cost (in Rs) of fencing it at the rate of Rs.11.50 per metre? [SSC CPO 24/11/2020 (Morning)]

Correct Answer: (d) 2,484
Solution:

23. The base of a triangle is equal to the perimeter of a square whose diagonal is 6√2cm, and its height is equal to the side of a square whose area is 144 cm². The area of the triangle (in m²) [SSC CPO 24/11/2020 (Evening)]

Correct Answer: (a) 144
Solution:

24. The perimeter of a square is half the perimeter of a rectangle. The perimeter of the square is 40m. If its breadth is two-thirds of its length, then what is the area of the rectangle? [SSC CPO 25/11/2020 (Morning)]

Correct Answer: (d) 384
Solution: