9Math Q06-1001
Chapter 6
Ratio, proportion and Variation
- 4 gallons : 6 quarts=……….
A. 2:3 B. 8:3 C. 4:6 D. 3:8 E. None of these - 6600 feet : 2 miles =…………
A. 8:5 B. 5:8 C. 33:1 D. 22:1 E.3300:1 - If 12x+y=2x, then x:y=……….
A. 1:2 B. 2:3 C.3:4 D. 3:5 E. 4:5 - The ratio 27:36 , expressed as a percentage, is
A. 25% B. 45% C. 60% D. 75% E. 80%
5.The ratio 2:x , expressed as a percentage , is 40%, then x=………..
A. 3 B. 4 C.5 D. 6 E.8 - If a:b=3:8 and b:c=4:5, then a:c=…………..
A. 5:11 B. 3:8 C. 3:11 D. 3:10 E. 5:8 - If a:b=3:5 and b:c=3:5, then a:b:c=………
A. 2:3:5 B.3:5:7 C.6:10:15 D. 9:15:25 E.9:20:27 - If a:b = 5:3 , then 3a+ 4b: 4a+3b is
A. 27:36 B. 29:27 C. 27:29 D. 26:29 E. 17:19 - If 2x +3y:2x+y=3:2, then x:y=……….
A. 3:2 B. 2:3 C. 4:3 D. 3:4 E. None of them - The cost of 40 pens is k. 360 and the cost of 30 pencils is k. 90. The ratio of the cost of a
pen to that of a pencil is
A. 1:3 B. 1:4 C. 3:1 D. 4:1 E. 16:3 - The ratio of the area of a circle of radius 7 cm to the area of a circle of radius 14 cm is
A. 1:2 B. 2:3 C. 3:5 D. 4:9 E. 1:4 - If the ratio of the areas of two circles is 49:25 , then the ratio of the diameters of these
circles is
A. 3:4 B. 4:5 C. 7:5 D. 6:5 E. 1:4
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