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Example 2: What is the value of B in given problem?

                                    48 hours 30 minutes = B hours 90 minutes


               In order to get the answer we need to do the following steps:

               Step 1: In both the sides of the problem, we have the values of minutes.


               Step 2: The value of minutes in Left Hand Side (LHS) of the problem is smaller

                           than that in Right Hand Side (RHS).


                           30 minutes < 90 minutes


                           We know that, 60 minutes = 1 hour

                           Now we borrow 1 hour from 48 hours in LHS,


                           48 hours 50 minutes = 48 hours + 30 minutes

                                                             = 47 hours + 1 hour + 30 minutes


                                                             = 47 hours + 60 minutes + 30 minutes

                                                             = 47 hours + 90 minutes


                                                             = 47 hours 90 minutes.

               Therefore, the required answer is 47.





               Example 3: What is the value of x in given problem?

                                    x hours 80 minutes = 4 hours 140 minutes


               In order to get the answer we need to do the following steps:

               Step 1: In both the sides of the problem, we have the values of minutes.


               Step 2: The value of minutes in Left Hand Side (LHS) of the problem is smaller


                           than that in Right Hand Side (RHS).

                           80 minutes < 140 minutes




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