#### SSC CGL Exam Quantitative Aptitude Study Material

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b) 5`

c) 4`4``

d) 4`8``

b) 33

c) 32

d) 30

b) 87

c) 84

d) 86

b) 10

c) 25

d) 20

b) 12

c) 3

d) 14.5

93+x =105;

x=105 -93 =12.

b) 46.5

c) 50.5

d) 38.5

=n(n+1)(2n+1)/6

?Required average

=(n+1)(2n+1)/6

=(10+1)(2×10+1)/6

=(11×21)/16=77/2=38.5

b) 21

c) 35

d) 7

Kishore+Shyam+Hari=x+21

Therefore, Runs scored by Raju=35-21=14

b) 6 years

c) 15 years

d) 19 years

boys=9*4+20=56 years

Sum of the present ages of five

boys=15*5=75 years

Therefore present age of new boy=75-56=19 years.

b) 53

c) 50

d) 51

⇒428+x=480

⇒x=480-428=52

b) 14

c) 16

d) 18

Therefore, required average=13+3=16