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A cylinder vessel of diameter 14cm and h...

A cylinder vessel of diameter 14cm and height 42cm is fixed symmetrically inside a similar vessel of diameter 16cm and height 42cm. The total space between the two vessels is filled with cork dust for heat insulation purposes. How many cubic centimetres of cork dust will be required?

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The correct Answer is:
`1980 cm ^(2)`
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ICSE-REVISION PAPER -3 -SECTION - B
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  2. ABCD is a syclic quadrilateral with angle ADC =135^(@). Sides BA and C...

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  3. A right circular cone is 3.6 cm high and radius of its base is 1.6 ...

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  4. In GP.2,6,18,54……………13122, the product of 3 ^(rd) term from the beginn...

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  7. If the roots of the equation (b-c)x^2+(c-a)x+(a-b)=0 are equal, then p...

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  8. In a positive fraction, the denominator is greater than the numerator ...

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  9. Solve : (i) (x^(2)-x)^(2)+5(x^(2)-x)+4=0 (ii) (x^(2)-3x)^(2)-16(x^...

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  11. There are three containers of equal capacity and all are completely fi...

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  12. A straight line passes through the points A(-5, 2) and B(3,-6). It int...

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  13. A straight line passes through the points A(-5, 2) and B(3,6). It inte...

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  14. A straight line passes through the points A(-5, 2) and B(3,6). It inte...

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  15. If (7a + 8b)/( 7c + 8d) = (7a - 8b)/(7c - 8d), prove that : a:b= c:d

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  16. If (7a + 8b)/( 7c + 8d) = (7a - 8b)/(7c - 8d), prove that : (i)a:b=c...

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  17. Calculate the ratio in which the line joining A(5, 6) and B(-3, 4) is ...

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  18. The speed of a boat in still water is 15 km/hr. It can go 30 km ups...

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  19. Prove that : sin A (1 + tan A) + cos A (1 + cot A) = sec A + cosec A.

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  20. If x in W, find the solution set of (3)/(5) x - ( 2x -1)/(3) gt1.

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  21. The figure alongside shows a circle with centre 0. Chord ED is paralle...

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