48. 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
47. The smallest ratio among the ratios 4 : 5, 5 : 7, 75 : 125 and 40 : 60 is
- (A) 4 : 5
- (B) 5 : 7
- (C) 75 : 125
- (D) 40 : 60
46. Which pair of ratios are equal?
(i) 2/3, 54/81 (ii) 8/4, 52/104 (iii) 4/5, 25/15 (iv) 3/4, 75/60
- (A) (i)
- (B) (ii)
- (C) (iii)
- (D) (iv)
45. What is the ratio of the shaded portion to the unshaded portion?
- (A) 5 : 12
- (B) 3 : 11
- (C) 6 : 13
- (D) 5 : 11
44. The ratio of the perimeter of the boundary of the shaded portion to the perimeter of the whole figure is
- (A) 7 : 4
- (B) 3 : 7
- (C) 7 : 3
- (D) 5 : 11
43. The ratio of the area of the shaded portion to that of the whole figure is
- (A) 1 : 6
- (B) 6 : 1
- (C) 7 : 3
- (D) 3 : 7
42. Sleeping time of a python in a 24 hour clock is represented by the shaded portion in the following figure.
The ratio of sleeping time to awaking time is
- (A) 1 : 6
- (B) 3 : 1
- (C) 4 : 3
- (D) 3 : 2
41. 20 tons of iron costs ₹600000. What is the cost of 560 kg of iron?
- (A) ₹15750
- (B) ₹16850
- (C) ₹17500
- (D) ₹16800
40. 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
39. A rectangular sheet of paper is of length 1.2 m and width 21 cm. Find the ratio of width of the paper to its length.
- (A) 47 : 6
- (B) 6 : 47
- (C) 7 : 40
- (D) 40 : 7
38. 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
37. 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
- (A) b/(b + g)
- (B) g/(b + g)
- (C) b/g
- (D) (b + g)/b
36. In a 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
35. If a bus travels 160 km in 4 hours and a train travels 320 km in 5 hours at uniform speeds, then the ratio of the distances travelled by them in one hour is
- (A) 1 : 2
- (B) 4 : 5
- (C) 5 : 8
- (D) 8 : 5
34. 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
33. Neelam’s annual income is ₹288000. Her annual savings amount to ₹ 36000. The ratio of her savings to her expenditure is
- (A) 1 : 8
- (B) 1 : 7
- (C) 1 : 6
- (D) 1 : 5