SSC GD 2011

Instructions

For the following questions answer them individually

Question 11

If m = 9 and n = $$\frac{1}{3}\ $$m, then $$\ \sqrt{(m)^{2}-(n)^{2}=?}$$

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Question 12

The ratio between the ages of x and y at present is 3:4. Five years hence, the ratio of their ages will be 4:5; what is the present age of y in years ?

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Question 13

What would come in place of ($) mark in the following equation ?
* 2 $ 20 ÷ 156 = 145

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Question 14

$$2\frac{1}{5}x^{2}\ $$= 2750, find the value of x ?

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Question 15

$$\frac{75\times75-26\times26}{101}=?$$

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Question 16

$$\angle ABC\ $$is an isosceles triangle and $$\ \overline{AB}\ $$=$$ \overline{AC}\ $$= 2a unit $$\ \overline{BC}\ $$= a unit, Draw $$ \overline{AD}\ \bot\ \overline{BC},\ $$and find the length of $$\ \overline{AD}$$

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Question 17

All sides of a quadrilateral ABCD touch a circle. If AB = 6 cm. BC = 7.5 cm. CD = 3 cm, then DA is

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Question 18

In a right angled triangle, the product of two sides is equal to half of the square of the third side i.e., hypotenuse. One of the acute angles must be

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Question 19

If two concentric circles are of radii 5 cm and 3 cm, then the length of the chord of the larger circle which touches the smaller circle is

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Question 20

Inside a square ABCD, $$\ \triangle BEC\ $$is an equilateral triangle. If CE and BD interesect at O, then $$\ \angle BOC\ $$ is equal to

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