Mathematics A cuboidal block of silver is 9 cm long, 4 cm broad and 3.5 cm in height. From it, beads of volume 1.5cm3 each are to be made. Find the number of beads that can be made from the block.

 A cuboidal block of silver is 9 cm long, 4 cm broad and 3.5 cm in height. From it, beads of volume 1.5cm3 each are to be made. Find the number of beads that can be made from the block.


  1. A
    84
  2. B
    85
  3. C
    86
  4. D
    87 

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    Solution:

    Given a cuboidal block of silver is 9 cm long, 4 cm broad and 3.5 cm in height.
    Also volume of beads 1.5cm3.
    Volume of the cuboid,V=l×b×h  , where l   is length, b   is breadth and h   is height.
    Now,
    Volume of the silver block=l×b×h =9 cm×4 cm×3.5 cm =126 c m 3  
    Volume of the beads is 1.5c m 3  .
    The number of beads is given by the formula,
      Numberofbeads= Volume ofsilverblock Volume of beads   Numberofbeads= 126  c m 3 1.5  c m 3 = 126 1.5 =84  
    Therefore, the number of beads made out of the silver block is 84.
    Hence, the correct option is 1.
     
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