#### NDA Exam Mathematics Study Material

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b) Decreases by 4%

c) Increases by 20%

d) Remains unchanged

b) Np+2

c) N+p+1

d) N+p

b) (a+b) /2

c) Ab

d) (a+b) / 2

I) n is odd

II) n

III) n

b) II only

c) I & III only

d) I and II only

b) 12.36%

c) 36%

d) 3.60%

b) 5/12

c) 1

d) 12/7

b)

c)

d)

b) 105°

c) 108°

d) 144°

b) 0

c) 1

d) 1/√3

b) 2

c) 0

d) 1