Facing Inclusion Exclusion Problem,anyone help plz?

Revision en8, by Finral_eCia, 2020-09-25 14:27:42

is anyone find the answer of . Where a=15,b=20,c=25.

my answer is=54, but actual answer is 45.

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en8 English Finral_eCia 2020-09-25 14:27:42 127
en7 English Finral_eCia 2020-09-25 14:25:22 98
en6 English Finral_eCia 2020-09-25 14:18:52 4 Tiny change: 'i try this![ ](https' -> 'i try this, \n![ ](https'
en5 English Finral_eCia 2020-09-25 14:18:19 2 Tiny change: ' try this!\n[ ](https:' -> ' try this![ ](https:'
en4 English Finral_eCia 2020-09-25 14:12:15 4 Tiny change: 'inciple?\ni try this![ ](https:' -> 'inciple?\n\ni try this!\n[ ](https:'
en3 English Finral_eCia 2020-09-25 14:11:12 240
en2 English Finral_eCia 2020-09-25 14:09:18 117
en1 English Finral_eCia 2020-09-25 14:07:50 344 Initial revision (published)