Question
A Bullet is cylindrical up to a height of 40 cm and conical above it. If its diameter is 35 cm and the slant height of the Conical part is 22cm, then the curved area of the bullet is
Radius of Cone = 35/2 cm Curved Surface area of Conical Part of a bullet = πrl = 22/7×35/2 × 22 = 1210 cm² Curved Surface area of the Cylinder = 2πrh = 2 × 22/7×35/2 × 40 = 4400 cm² Total Surface area of a Bullet = 4400 + 1210 = 5610 cm² More Mensuration Questions
- The ratio of length to breadth of a rectangle is 5:4, respectively. Perimeter of rectangle is 144 cm. If each side of a square is 25% more than the breadth...
- Ratio of length to width of a rectangular field is 3:2. If the perimeter of the field is 360 metres, then find the area (in m2) of the field.
- The volume of a cube is 216 cm³. If the cost of painting the cube is Rs. 12 per cm², then find the cost of painting five faces of the cube.
- A rectangular field is 45 m long and 30 m wide. A fence is to be put all around it. Find the area of the field and the length of the fence needed.
- 2[sin x – cos x]4 + 6[sin x + cos x]2 + 5[sin6 x + cos6 x]= ?
- A circle has a chord of length 22 cm, and this chord is the diameter of the circle. Find the radius of the circle.
- How many bullets can be made out of a lead cylinder 32cm high and 12 cm radius, each bullet being 4 cm in diameter?
- A race track is in the shape of a rectangle with length of 70 metres and area of 4900 m2. A car takes 5 seconds to make one lap around the perimeter of thi...
- A rectangle has a length to breadth ratio of 7:5. The length is increased by 15% without any change to the breadth, resulting in an 84 m² increase in the r...
- The length of a 744 metre long wire is 12 times the perimeter of a rectangular French garden. Find the area of the rectangular garden given that its length...
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)