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
In Fig. 6, find the area of the shaded region, enclosed between two concentric circles of radii 7 cm and 14 cm where ∠AOC = 40°. (use `pi = 22/7`)
A bicycle whell makes 5000 revolutions in moving 11 km. Find the diameter of the wheel
The hypotenuse of a right-angled triangle is 65 cm and its base is 60 cm. Find the length of perpendicular and the area of the triangle.
The perimeter of a rhombus is 60 cm. If one of its diagonal us 18 cm long, find
(i) the length of the other diagonal, and
(ii) the area of the rhombus.
Choose the correct alternative answer for the following question.
The circumferences of two circles are in the ratio 3 : 4. The ratio of their areas is ______.
A conical tent requires 264 m2 of canvas. If the slant height is 12 m, find the vertical height of the cone.
Find the diameter of the sphere for the following :
Surface Area = 221. 76 cm2
A circular racing track has inner circumference 528 m and outer circumference 616 m. Find the width of the track.
Find the radius and area of the circle which has circumference equal to the sum of circumferences of the two circles of radii 3 cm and 4 cm respectively.
