A. 3:4
B. 4:3
C. 3:1
D. 1:3
4 πr2 : 3 πr2 => 4:3
Related Mcqs:
- Find the ratio of the curved surfaces of two cylinders of same heights if their radii are in the ratio 1:2.
A. 1:2
B. 2:1
C. 1:4
D. 4:1 - Surface area of a sphere is 2464 cm2. If its radius is doubled, then the surface area of _________?the new sphere will be
A. 4920 cm2
B. 4727 cm2
C. 9856 cm2
D. 19712 cm2 - The ratio between the radii of two spheres is 1:3. Find the ratio between their volumes?
A. 27:1
B. 1:27
C. 1:9
D. 9:1 - The ratio of the volumes of a cube to that of the sphere which will fit inside the cube is________?
A. 4:3
B. 4:2
C. 4:4
D. 6: π - The ratio between the sale price and the cost price of an article is 7:5. What is the ratio between the profit and the cost price of that article?
A. 2:7
B. 5:2
C. 7:2
D. Data inadequate
E. None of these - The height of two right circular cones are in the ratio 1:2 and their perimeters of their bases are in the ratio 3:4, the ratio of their volume is_________?
A. 3:8
B. 9:16
C. 9:32
D. 9:64 - An order was placed for the supply of a carper whose length and breadth were in the ratio of 3 : 2. Subsequently, the dimensions of the carpet were altered such that its length and breadth were in the ratio 7 : 3 but were was no change in its parameter. Find the ratio of the areas of the carpets in both the cases.
A. 4 : 3
B. 8 : 7
C. 4 : 1
D. 6 : 5 - In what ratio should the profit be divided if M, N, O invests capital in ratio 2:3:5 and their timing of their investments are in the ratio 4:5:6.
A. 8:15:30
B. 5:18:28
C. 4:5:6
D. 2:3:5 - Visitors to show were charged Rs.15 each on the first day. Rs.7.50 on the second day, Rs.2.50 on the third day and total attendance on the three days were in ratio 2:5:13 respectively. The average charge per person for the whole show is___________?
A. Rs.3
B. Rs.4.50
C. Rs.5.00
D. Rs.7.50 - How many shots of 1cm radius can be prepared from a sphere of 3cm radius?
A. 36
B. 64
C. 27
D. 16
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