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188                                                                                                  Maths


        3.  (a)  Yes   (b) No   (c) Yes  (d) No  4. (a)   (b)   (c)      (d)
                                                      Assessment Time
        A. 1.  (a) 2. (a) 3. (c) 4. (b) 5. (b)  B. 1. 5 × 5 – 4 × 4 = 5 + 4 = 9  6 × 6 – 5 × 5 = 6 + 5 = 11  7 × 7 – 6 × 6 = 7 + 6 = 13
        2.  1234 × 8 + 4 = 9876  12345 × 8 + 5 = 98765  123456 × 8 + 6 = 987654
        C.  1. GOD HELPS THOSE WHO HELP THEMSELVES                   2. G112U,  H224T

        Chapter 13: Data Handling
        Boot-up : 1. 8. 2. 4, 3. Do yourself
                                                        Exercise 13.1

        1.      Clothes    Tally marks Number               2.  (a)   Day     Production of TV sets
                 Shoes           ||       2                       Monday
                T-Shirt           |       6                       Tuesday
                                                                  Wednesday
                Short pants               5
                                                                  Thursday
                 Socks         |||        3                       Friday
                Trousers      ||||        4                       Saturday

                  Sweaters     |||        3
                              Total       23
        (b)  Day       Number of students present in the class         3.  (a)  20000 bulbs  (b)  4th week  (c)  ` 7000

            Monday                                                     4. (a)  7 students  (b)  Monday  (c)  Wednesday

                                                                          (d) 37 students  (e)  2 students
            Tuesday
            Wednesday
            Thursday
            Friday
            Saturday
               Each   = 50 sets           Each    = 4 students
                                                        Exercise 13.2
        1.  Games         Number of Student                  2.  (a)  Friday   (b) Wednesday  (c)  10,000   (d)  1,70,000
            Badminton     60                                 3.  (a)  40 Crores   (b)  10 Crores  (c)  70 Crores
            Cricket       50                                 (d)  Graph  is  showing  the  population  of  country  during
            Football      50                                    different decades.
            Swimming      40
                                                      Assessment Time
        A. 1. (b)          2.  (a)     3.  (b)      B.  1. Title and label    2. |||||     3.  data

                                                        Assessment–4
        1.  (b) 2. (a) 3. (b) 4. (b) 5. (a) 6. (d) 7. diameter 8. 6 9. infinite 10. 6 11. 18 cm 12. (b)
        13. (b) 14. (a) 15. 9 cm 16. 220 cm 17. (b) OA = 4 cm (c) AB = 8 cm

        18.  Class/Sections  Number of students                            19. (a) Dance, 60 students (b) 35 students
            IV A                                                           (c) 215 students (d) False
                                                                                                   2
            IV B                                                           20. 40 m 21. 1100 cm, 6 m  22. 60 cm
                                                                           23. square, 8 cm
            IV C
            IV D

            IV E
           Each   = 5 students
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