SSC CGL TIER -1 2017 Advance maths Trick 1

SSC CGL 2017 Advance MAths tricks with PRactice Paper


SSC CGL is an exam that is conducted by SSC for various types. Quants section will be consisting of 25 questions acc to the new syllabus. Each question carries 2 marks. For every wrong answer 0.50 marks will be deducted. Quants sections consist of :-

Number system

LCM and HCF

Simplification

Power,Indices ans Surds

Average

Ratio and proportion

Percentage

Geometry

Mensuration 

Algebra

Series

Trigonometry

]

I will tell u tricks of frequently asked questions in previous year exams. I am starting with geometry:

1. If the radius of a circle is increased by 5% then the increase in its area is

       a)     10.25%      b)      10%       c)      5.75%     d)   5% ( CGL Tier 2 (2015))

Formula    2x+x^2/100

                  x= 5   

                2 X 5 =  10  +  5 X 5/100

                          =  10  + 0.25

                          =  10.25%    

Practice questions

1)        If the radius of a circle is decreased by 5% then the decrease in its area is:-  

           Note : Take X value in negative

2)        If the circumference of a circle is reduced by 50%. Its area will be decreased by:

3)       The radius of a circle is increased by 1 % . How much does the area of the circle increase.
4)       If the circumference of a circle is increased by 50%. Its area will be increased by: