• #### NDA Exam Mathematics Study Material

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a) 15 / 3
b) 6
c) 41 / 6
d) 12 /4

a) 0.33
b) 3.03
c) 3.3
d) 0.033

a) 5
b) 4
c) 5.5
d) 4.5

a) 9
b) 16
c) 26
d) 30

##### The average of x numbers is y and average of y numbers is x. Then , the average of all the numbers taken together is

a) (x+y )/ 2xy
b) 2xy / (x+y)
c) (x2 + y2) /(x+y)
d) Xy/(x+y)

a) 75.7
b) 75.8
c) 75.9
d) 75.6

a) 45
b) 55
c) 25
d) 35

a) X
b) A x
c) X/a
d) X + a

a) 66
b) 56
c) 55
d) 57

a) 4922
b) 4922.5
c) 4827
d) 4365