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10., , . The ratio of 8 books to 20 books is, , (A) 2:5 (B) 5:2 (C) 4:5 (D) 5:4, , . The ratio of the number of sides of a square to the number of edges, , of a cube is, , (A) 1:2 (B) 3:2 (C) 4:1 (D) 1:3, , . A picture is 60cm wide and 1.8m long. The ratio of its width to its, , perimeter in lowest form is, , (A) 1:2 (B) 1:3 (Cc) 1:4 (D) 1:8, , . Neelam’s annual income is Rs. 288000. Her annual savings amount, , to Rs. 36000. Theratio of her savings to her expenditure is, (A) 1:8 (B) 1:7 (C) 1:6 (D) 1:5, , . Mathematics textbook for Class VI has 320 pages. The chapter, , ‘symmetry’ runs from page 261 to page 272. The ratio of the number, of pages of this chapter to the total number of pages of the book is, , (A) 11: 320 (B) 3:40 (C) 3:80 (D) 272 : 320, , . Ina box, the ratio of red marbles to blue marbles is 7:4. Which of the, , following could be the total number of marbles in the box?, (A) 18 (B) 19 (C) 21 (D) 22, , On a shelf, books with green cover and that with brown cover are in, the ratio 2:3. If there are 18 books with green cover, then the number, of books with brown cover is, , (A) 12 (B) 24 (C) 27 (D) 36, , The greatest ratio among the ratios 2: 3,5: 8, 75: 121 and 40: 25, is, , (A) 2:3 (B) 5:8 (C) 75: 121 (D) 40:25, , There are ‘b’ boys and ‘g’ girls in a class. The ratio of the number of, , boys to the total number of students in the class is:, , b g b, (A) big 8) jig (C) Z (), If a bus travels 160 km in 4 hours and a train travels 320km in, 5 hours at uniform speeds, then the ratio of the distances travelled, by them in one hour is, , ‘b+g, b, , (A) 1:2 (B) 4:5 (C) 5:8 (D) 8:5