Advertisements
Advertisements
प्रश्न
The wheel of a bullock cart has a diameter of 1.4 m. How many rotations will the wheel complete as the cart travels 1.1 km?
Advertisements
उत्तर
Diameter of the wheel, d = 1.4 m
Circumference, c = πd
= `22/7xx1.4`
= 22 × 0.2
= 4.4 m
Distance covered in 1 rotation = circumference of the wheel = 4.4m
∴ Total number of rotations taken by wheel = `"total distance"/"circumference"`
= `(1.1 xx 1000)/4.4`
= `(11 xx 1000)/44`
= `11000/44`
= 250
Hence, the wheel of the bullock cart will complete 250 rotations as the cart travels 1.1 km.
संबंधित प्रश्न
All the vertices of a rhombus lie on a circle. Find the area of the rhombus, if the area of the circle is 1256 cm2. (Use π = 3.14)
Find the circumference of a circle whose area is 301.84 cm2.
An arc of length 20𝜋 cm subtends an angle of 144° at centre of circle. Find the radius of the circle.
Choose the correct alternative answer for the following question.
The curved surface area of a cylinder is 440 cm 2 and its radius is 5 cm. Find its height.
In the given figure, OPQR is a rhombus, three of whose vertices lie on a circle with centre O. If the area of the rhombus is `32sqrt(3)`, find the radius of the circle.
The radius of the circle is given below; find the area.
28 cm
Find the curved surface area , the total surface area and the volume of a cone if its :
Height = 15 cm , radius = 8 cm
Find the circumference of the circle whose area is 81π cm 2.
The area of a circular playground is 22176 m2. Find the cost of fencing this ground at the rate of Rs 50 per metre.
