SSC CGL Tier 1 9 August 2015 Shift 2

Instructions

For the following questions answer them individually

Question 151

XY and XZ are tangents to a circle, ST is another tangent to the circle at the point R on the circle, which intersects XY and XZ at S and T respectively. If XY = 15 cm and TX = 9 cm, then RT is

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Question 152

Pipe A can fill a tank in 6 hours and pipe B can fill it in 4 hours. If they are opened on alternate hours and if pipe A is opened first, in how many hours, the tank shall be full ?

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Question 153

The value of tan1°tan2°tan3° ……………tan89° is

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Question 154

If $$x+\frac{1}{x}=1$$ then the value of $$\frac{x^2+3x+1}{x^2+7x+1}$$

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Question 155

In a rhombus ABCD, $$\angle$$A = 60° and AB. = 12 cm. Then the diagonal BD is

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Question 156

The printed price of an article is 40% higher than its cost price. Then the rate of discount such that he gains 12% profit is

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Instructions

Study the following frequency polygon and answer the questions. Given a line graph showing the number of students passed in Higher Secondary Examination in a school over the years 2008 to 2013.


Question 157

The average of passed students in the years 2008, 2009, 2012 approximately is

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Question 158

The increase in percentage of passed students from 2008 to 2011 approximately is

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Question 159

The decrease in percentage of passed students from 2011 to 2012 approximately is

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Instructions

For the following questions answer them individually

Question 160

If $$\frac{\cos\alpha}{\sin\beta}=n$$ and $$\frac{\cos\alpha}{\cos\beta}=m$$ then the value of $$\cos^{2} \beta$$ is

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