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    3.  Each  arrow has a mathematical  operator.             • At the second stop,  2 passengers  get  off
                         When placed in the centre box, its operator            and 4 passengers get in
                         replaces the letter A in the equation it points        •  At  the third stop,  exactly half  of the
                         to. Which arrow satisfies an equation based            passengers get off
                         on this rule?
                                                                             After this, half of the bus seats are occupied.
                                        5 A 4 = 20                           Which of the following expressions represents

                                                                             the number of passengers on the bus at the
                                                                             beginning?
                           7 A 8 = 13                9 A 3 = 6
                                                                                    (a)  5 × 5 + 5

                                        14 A 7 = 2                                  (b)  6 × 6 – 4

                                                                                    (c)  5 × 5 + 10
                               (a)
                                                                                    (d)  6 × 6 - 5
                               (b)
                                                                          5.  The following expression has a whole number
                                                                             ‘n’. If a blank can either take ‘×4’ or ‘–12’, what
                               (c)
                                                                             is the least possible value of ‘n’?

                                                                             Expression: (n              )       = 96
                               (d)
                                                                                    (a)  9
                      4.  A bus has 40 seats, and some  seats  are
                         already occupied, with one passenger in each               (b)  18
                         seat.
                                                                                    (c)  4
                            •  At the first stop, 5 passengers get off and 8
                            passengers get in                                       (d)  72

                                                                 Answers
                                                    1. (c)   2. (d)   3. (d)    4. (c)   5. (a)

                     18        Computational Thinking-7 (Mathematics)

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