Question

Solve my challenge.................

Answer 1

                                     ☺☺☺


= ( 1901 + 1902 + 1903 + .... + 1993 ) - ( 101 + 102 + 103 +...... + 193 )

= 1901 + 1902 + 1903 + .... + 1993 - 101 - 102 - 103 - ....  - 193

By subtracting  101 from 1901 ,we get 1901 - 101 = 1800.

                         102 from 1902 , we get 1902 - 102 = 1800.

                         103 from 1903 , we get 1903 - 103 = 1800.

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                         193 from 1993 , we get 1993 - 103 = 1800.

Numbers of terms that we shall get = 1993 - 1901 + 1 = 1994 - 1901 = 93.

= 1800 + 1800 + 1800 + ................... + 1800  { 93 terms }

= 1800 ( 1 + 1 + 1 + ......... + 1 )                       { 93 terms }

= 1800 x 93

= 1,67,400.


                                          ☺☺☺
                         

Answer 2

Answer:

7996

Step-by-step explanation:

1901 + 1902 = 3803

1903 + 1993 = 3896

3803 + 3896 = 7699                                                                                                  Then I took that number 7699 and I subtracted it by 101 been added 102 + 103 + 193 which gave me the 7996