Mensuration (Railway Maths) (Part – XI)

Total Questions: 30

1. The width of a rectangle is 65 cm and its area is 10140 cm². Find its perimeter (in cm). [RPF Constable 18/01/2019 (Afternoon)]

Correct Answer: (b) 442
Solution:

2. The width of a rectangle is 50 cm and one of its diagonals is 130 cm. Find out its perimeter (in cm). [RPF Constable 18/01/2019 (Evening)]

Correct Answer: (d) 340
Solution:

3. The base of a parallelogram is three times its height. If the area is 1083 sq cm, then find the value of base and height. [RPF Constable 19/01/2019 (Morning)]

Correct Answer: (c) 57, 19
Solution:

4. If the volume of a conference room is 1188 m³ and its floor area is 99 m², then find the height of the room. [RPF Constable 19/01/2019 (Morning)]

Correct Answer: (b) 12 m
Solution:

5. If the radius of a circle is increased by 6 times, its circumference will increase by how many times from its former circumference? [RPF S.I. 19/12/2018 (Morning) ]

Correct Answer: (c) 6
Solution:

Circumference of circle =2πr As , we know that circumference is directly proportional to radius of circle if radius is increased 6 times then circumference is also increased by 6 times.

6. The area of a square piece of glass is 484 cm 2 , which is placed on the top of a table. The width between the piece of glass and one edge of the table is 5 cm. Find the length of the table? [RPF S.I. 19/12/2018 (Morning) ]

Correct Answer: (c) 32cm
Solution:

7. What will be the height of a cuboid if a solid cube of diagonal 8√3 cm is melted and recasted into cuboid, if the length of the cuboid is equal to the side of the cube and the breadth of the cuboid is 4 cm. [RPF S.I. 19/12/2018 (Evening) ]

Correct Answer: (c) 16 cm
Solution:

8. The area of a square piece of glass is 676 cm², which is placed on the top of a table. The width between the piece of glass and a side of the table is 9 cm. Find the length of the table. [RPF SI 24/12/2018 (Morning)]

Correct Answer: (c) 44 cm
Solution:

9. If the cube with a 26√3 cm diagonal is melted, then how tall is the height of the cuboid, if the length of the cuboid is equal to the arm of the cube and the width of the cuboid is 13 cm? (in cm) [RPF SI 05/01/2019 (Morning)]

Correct Answer: (a) 52
Solution:

10. The area of a square piece of glass is 1089 cm², which is placed on the top of a table. The width between the piece of glass and a side of the table is 9 cm. Find the length of the table. [RPF SI 06/01/2019 (Afternoon)]

Correct Answer: (a) 51
Solution: