MCQ
Three coins are tossed. Find the probability that tail does not appear.
- A$\frac{3}{8}$
- ✓$\frac{1}{8}$
- C$\frac{1}{4}$
- D$\frac{7}{8}$
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Column I
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Column II
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a.
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A solid metallic sphere of radius 8cm is melted and the material is used to make solid right cones with height 4cm and base radius of 8cm. How many cones are formed?
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p.
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18
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b.
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A 20-m-deep well with diameter 14m is dug up and the earth from digging is evenly spread out to form a platform 44m by 14m. The height of the platform is ........ m.
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q.
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8
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c.
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A sphere of radius 6 cm is melted and recast in the shape of a cylinder of radius 4cm. Then, the height of the cylinder is ......... cm.
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r.
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16 : 9
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d.
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The volumes of two spheres are in the ratio 64 : 27. The ratio of their surface areas is ....... .
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s.
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5
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