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A solid cylinder of base radius 12cm and...

A solid cylinder of base radius 12cm and height 15 cm is melted and recast into n toys each in the shape of a right circular cone of height 9 cm mounted on a hemisphere of radius 3 cm. The value of n is :
आधार त्रिज्या 12 सेमी तथा ऊंचाई 15 सेमी वाले एक ठोस बेलन को पिघलाकर n खिलौने बनाए जाते हैं जिनमें से प्रत्येक 3 सेमी त्रिज्या वाले अर्धगोले के शीर्ष पर स्थित एक लम्ब वृत्तीय शंकु के आकार में हैं जिसकी ऊंचाई 9 सेमी है | n का मान ज्ञात करें |

A

27

B

64

C

48

D

54

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CHAMPION PUBLICATION-2018 TIER-II PAPER(6)-EXERCISE
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  3. A solid cylinder of base radius 12cm and height 15 cm is melted and re...

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  5. P and Q are two points on the ground on either side of a pole. The ang...

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  6. If in triangle PQR, angle P = 120^@, PS bot QR at S and PQ+QS=SR, then...

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  7. The given pie chart shows the break up of total marks obtaind by a stu...

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  8. Walking at 60% of his usual speed, a man reaches his destination 1 hou...

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  9. A man can row a distance of 900 meters against the stream in 12 minute...

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  10. If x+y+z=6, xyz=-10 and x^2+y^2 +z^2 =30, then what is the value of (x...

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  11. The value of ((4.6)^4+(5.4)^4+(24.84)^2)/((4.6)^2+(5.4)^2+24.84) is :-...

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  12. If (sin theta)/(1+cos theta)+(1+cos theta)/(sin theta)=4/sqrt3, 0^@< t...

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  13. Sudha bought 80 articles at the same price. She sold some of them at 8...

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  14. The given pie-chart shows the break-up of total marks obtained by a st...

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  15. If the selling price of an article is 32% more than its cost price and...

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  16. Study the following bar graph and answer the question given . ...

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  17. The internal diameter of a hollow hemispherical vessel is 24 cm. It is...

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  18. The bisector of angle A in triangle ABC meets BC in D. If AB = 15 cm, ...

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  19. A certain loan was returned in two equal half yearly instalments each ...

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  20. A sum is divided among A, B, C and D such that the ratio of shares of ...

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