CBSE Class 10 Mathematics (For Blind) Question Paper 2018 with Answer Key (March 28, Set 4 - 30(B))

CBSE X Questions

• 1.

  Prove that: $\frac{\tan \theta}{1 - \cot \theta} + \frac{\cot \theta}{1 - \tan \theta} = 1 + \tan \theta + \cot \theta$

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• 2.

  In the given figure, point D divides the side BC of $\Delta ABC$ in the ratio $1 : 2$. Find length AD.
  

  

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• 3.

  If the zeroes of a polynomial p(x) are $-3$ and 8, then p(x) equals

  • $x^2 + 5x - 4$
  • $(x + 3) (-x + 8)$
  • $a(x^2 + 5x - 24)$
  • $x^2 - 24$
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• 4.

  Two water taps together can fill a tank in $8\frac{8}{9}$ hours. The tap of larger diameter takes 4 hours less than the smaller one to fill the tank separately. Find the time in which each tap can separately fill the tank.

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• 5.

  A chord of a circle, of radius 14 cm, subtends an angle of $60^\circ$ at the centre. Find the area of the smaller sector and perimeter of the smaller segment.

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• 6.

  In the given figure, $AB \parallel DE$ and $AC \parallel DF$. Show that $\Delta ABC \sim \Delta DEF$. If $BC = 10\text{ cm}$, $EB = CF = 5\text{ cm}$ and $AB = 7\text{ cm}$, then find the length $DE$.
  

  

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