One -tenth of books are picture books 2/10 are story books and half are science fiction and remainings are encyclopaedia what fraction are encyclopaedia

Step-by-step explanation:

Remaining fraction:

1/5 of books are encyclopedia

Let the total fraction of books be 1, then;

in if you ask questions, the points are taken from your total and given to the one who answered it..

so if i have 30 points and i ask a question for 5 points, then when someone asks a question i will lose 5 points and the answerer earns 5

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step-by-step explanation: