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A ditch of radius 3.5 m is dug 16 m deep...

A ditch of radius 3.5 m is dug 16 m deep. The earth removed is spread over an area of 400 `m^2` to form a platform. Height of the platform is _____.
16 मी गहरी तथा 3.5 मी त्रिज्या वाली एक खाई खोदी जाती है ओर निकाली गई मिट्टी का क्षेत्रफल 400 `मी^2` वाला एक प्लेटफार्म तैयार किया जाता था। प्लेटफार्म की ऊँचाई है।

A

A) 7.7 m/मी

B

B) 77 m/मी

C

C) 1.57 m/मी

D

D) 1.54 m/मी

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CHAMPION PUBLICATION-2012 TIER-II PAPER(22)-EXERCISE
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  2. If the area of the circular shell having inner and outer radius of 8 c...

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  3. A ditch of radius 3.5 m is dug 16 m deep. The earth removed is spread ...

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  4. The ratio of the number of sides of two regular polygons is 1: 2. If e...

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  5. If x= sqrt((sqrt5+1)/(sqrt5-1)), then x^(2)-x -1 is equal to

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  6. Two posts are x meters apart and the height of one is double that of t...

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  7. If theta is a positive acute angle and tan 2 theta .tan 3 theta = 1, t...

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  8. If sin 17^@ = x/y,then the value of sec 17^@ - sin 73^@ is

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  9. In a right -angled triangle XYZ right angled at Y . If XY=2sqrt(6)a...

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  10. If 0^@ lt theta lt 90^@, then the value of sin theta + cos theta is

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  11. An aeroplane when flying at a height of 5000 m from the ground ...

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  12. The angles of a triangle are in Arithmetic Progression. The ratio of t...

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  13. Suppose DeltaABC be a right-angled triangle where angleA= 90^@ and AD ...

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  14. Two circles touch each other externally at P. AB is a direct common ta...

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  15. The length of the common chord of two intersecting circles is 24 cm. I...

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  16. In DeltaABC, D and E are points on AB and AC respectively such that DE...

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  17. The area of the square inscribed in a circle of radius 8 cm is

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  18. X and Y are centres of circles of a radii 9 cm and 2 cm respectively, ...

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  19. I is the incentre of a triangle ABC. If /ABC = 65^@ and /ACB = 55^@, t...

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  20. If the radii of two circles be 6 cm and 3 cm and the length of the tra...

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