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                      Encapsulate
                  math
                                                               mOney

                               Unitary method                                               Profit and Loss

                                     ÷
                       Cost of                 Cost of                              Profit = Selling price – Cost price
                        many     Number of      one                                        Profit = SP – CP
                                    units
                                     ×                                              Loss = Cost price – Selling price
                       Cost of                 Cost of                                      Loss = CP – SP
                        one      Number of     many
                                    units



                      Mental Maths

                 Complete the following table.

                         Cost Price (`)        Selling Price (`)         Profit/Loss              Amount
                  1.         `1354                  `1005
                  2.        `21350                                          Profit                 `2000

                  3.                                `6724                    Loss                   `500
                  4.         `9702                  `10542




                     Life Skills

                 We get  a  bill  from the  shopkeeper  whenever  we buy  something  from the
                 shop. It has all the details of the purchased products, like its name, code number, size,
                 price, date of purchase, etc. The bill also has the name and contact details of the shop.
                                                      m.g. mArg, deLhI               Ph: 1234567890

                              date:              dd/mm/yyyy
                               Item                Quantity                 rate                   Cost
                            Binoculars                 2                     `50                   `100

                          Traveller's bag              1                    `150                   `150
                               Torch                   2                     `25                   `50
                            total cost                                                              300

                 Collect 3 bills from different shops that you have visited.

                 Note down the differences that you have found in these bills.



                      Brain Sizzlers

                  Aman bought 2 dozen eggs for `108. But 6 of them were rotten. He incurred a
                  loss of `27 on selling the remaining eggs. What was the selling price of 1 egg?


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