Page 135 - New Medley 5 Semester 2
P. 135

E.  A tank had 1 kL water. From this tank, 3 drums of capacities 150 L, 200
              L and 225 L were filled. How much water was left in the tank?


          F.  Vashu, Megha and Krish, having respective weights 34 kg 5 hg, 32 kg 4 hg and
              36 kg 5 hg went for a ride in the amusement park. There was a restriction
              that  it  can  carry  only  two  people  not  exceeding  70  kg together.  Decide

              which two cannot go on that ride together?


                      Multiplication and Division of Metric Measures


        We can multiply or divide metric measures like whole numbers using place

        value or like decimals by converting it into a single unit.


        Example 6:  Multiply 1 kg 3 hg 5 dag 7 g by 4 using place value.

        Solution:           Arrange the numbers properly and multiply.


                             kg hg dag g
                             1 3 5 7

                                     × 4
                             5 4 2 8


                              Express the result in the given units.

                            Thus, 1 kg 3 hg 5 dag 7 g × 4 = 5 kg 4 hg 2 dag 8 g


        Example 7:  Multiply 3 L 6 dL 3 cL 4 mL by 12 and express your result

                            in litres.

        Solution:           As 3 L 6 dL 3 cL 4 mL = 3.634 L

                            So multiply 3.634 × 12


                                3 . 6 3 4
                                    × 1 2

                                7 2 6 8

                             3 6 3 4

                             4 3 . 6 0 8


                            Thus,          3.634 L × 12 = 43.608 L


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