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How many iron rods each of length 14 m a...

How many iron rods each of length 14 m and diameter 4 cm can be made out of `0.88 m^(3)` of iron ?

A

20

B

30

C

40

D

50

Text Solution

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The correct Answer is:
D
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ARIHANT PUBLICATION PUNJAB-MENSURATION-Chapter Exercise
  1. How many iron rods each of length 14 m and diameter 4 cm can be made o...

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  2. The parallel sides of trapezium field are 12 m and 20 m . If distnace ...

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  3. Length of diagonals of a rhombus field are 8 m and 14 m. Find its area

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  4. If side of a square is doubled, howmany times its area will be increas...

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  5. Area of rhombus is 256 cm^2. One of the diagonal is half of the other ...

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  6. The length of a rope by which a buffalo must be tethered so that she m...

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  7. The total cost of flooring a room at Rs. 12.50 per m is Rs. 400 . If ...

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  8. The inner and outer radii of a circular track are respectively 21 m an...

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  9. A brick measures 20 cm xx 10 cm xx 7.5 cm . How many bricks will be ...

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  10. A school hall has the dimensions 30 m , 12 m by 6m . Find the number o...

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  11. If the capacity of a cylindrical tank is 1848 m^3 and the diameter of ...

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  12. How many metres of cloth 10 m wide will be required to make a conical ...

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  13. The maxumum number of boxes , each of length 2 m , breadth 4 m and he...

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  14. How many times a wheel of diameter 105 cm wil rotate to covering a dis...

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  15. What will be the semi - perimeter of the following figure ?

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  16. The volume of a cube is 512 cm^(3) . Find the length of its diagonal

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  17. A rectangular grassy plot 160 m by 45 m has a gravel path 3 m wide all...

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  18. If the length and breadth of a rectangle are increased by 10 % and 8 %...

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  19. If the length of a rectangle is increased by 4% and breadth of the rec...

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  20. If sides of a square are increased by 7% , by what percent its area wi...

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  21. If diameter of a circle is decreased by 5% by what percent its area wi...

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