A calculus problem by Adarsh Rajput

Calculus Level pending

in a colony of 125 members, 70 members watch telugu channel, 80 members watch hindi channel and 95 watch english channel, 20 watch only telugu and hindi, 35 watch only english and hindi and 15 watch only telugu and english. how many members watch all the three channels, if each watches either of the channel?

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