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                                                                                   Mathematics  Form 3  PT3  Model Paper
                                                     Total distance             (ii)  ∠FBC = 180° – 150°
                          (b)        Average speed =
                                                         Time                             = 30°
                       [1.5 × (10 × 60) + 5 000 + x]  7 000
                                                   =                                ∴ x + 130° + 30° = 180°
                             10 + 32.5 + 17.5         60                                           x = 20°
                                                 x = 1 100m
                                                                                    ∠DEB + x = 180°
                          ∴ Ken walked for 1 100 m.                                     ∠DEB = 180° – 20°
                                                                                              = 160°
                                              10.24
                          (c)  (i)  tan ∠KJL =                                      y = 360 – 160°
                                                8                                    = 200°
                                              
                                  ∠KJL = tan –1 10.24 
                                                 8
                                  ∠KJL = 52°





























































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                BOOKLET ANS MATH F3.indd   32                                                                                                                                                                    03/01/2020   10:21 AM
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