A book has 200 pages. If I have read 1/10 of the part of the book then how much part of the book is left to read. A) 10
B) 20
C) 180
D) 190
Please give correct answer with explanation.​

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Evaluate the expression. (9 + 5)(3 + 2)0

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.