• #### Territorial Army Officers Exam Elementary Mathematics Study Material

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a)

3

b)

6

c)

7

d)

5

a)         29
b)         27
c)         23
d)         25

a)         4.5
b)         5.6
c)         6.2
d)         6.5

a)         2m-l
b)         2m+l
c)         m-l
d)         m+l

##### If the mean of the observations x,x+3,x+5,x+7,x+10 is 9, the mean of the last three observations is

a)         10 2/3
b)         10 1/3
c)         11 1/3
d)         11 2/3

a)         16
b)         17
c)         14
d)         15

a)         35
b)         50
c)         46
d)         62

##### If each observation of the data is increased by 5, then their mean

a)         is increased by 5
b)         becomes 5 times the original mean
c)         is decreased by 5
d)        remains the same

a)         25
b)         30
c)         27.5
d)         22.5

a)         85
b)         78
c)         75.5
d)         67.5

##### Solution Is :
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