NDA questions
2282 published questions with worked solutions.
- If x, 3/2, z are in AP; x, 3, z are in GP; then which one of the following will be in HP?
- What is the value of the sum _ n=2 ^ 11 (i^n+i^ n+1 ), where i= -1 ?
- If x= 1 5 , y= 1 10 , where 0<x< 2 , 0<y< 2 , then what is (x+y) equal to?
- What is 5x- 3x 5x+ 3x equal to?
- What is 105^ + 105^ equal to?
- In a triangle ABC if a=2, b=3 and A=2/3, then what is angle B equal to?
- What is the principal value of ^ -1 ( 2 3 )?
- If x, x-y and x+y are the angles of a triangle (not an equilateral triangle) such that (x-y), x and (x+y) are in GP, then what is...
- ABC is a triangle inscribed in a circle with centre O. Let = BAC, where 45^ < <90^ . Let = BOC. Which one of the following is...
- If a flag-staff of 6 m height placed on the top of a tower throws a shadow of 2 3 m along the ground, then what is the angle that...
- What is ^ -1 ( 1 4 )+ ^ -1 ( 3 5 ) equal to?
- If (x+y) (x-y) = a+b a-b , then what is x y equal to?
- If + =0= + , where 0< < <2 , then which one of the following is correct?
- Suppose A is given. If only one value of ( A 2 ) is possible, then A must be
- The maximum value of (x+ 5 )+ (x+ 5 ), where x (0, 2 ), is attained at
- What is the distance between the points which divide the line segment joining (4, 3) and (5, 7) internally and externally in the...
- What is the angle between the straight lines (m^2-mn)y=(mn+n^2)x+n^3 and (mn+m^2)y=(mn-n^2)x+m^3, where m>n?
- What is the equation of the straight line cutting off an intercept 2 from the negative direction of y-axis and inclined at 30^...
- What is the equation of the line passing through the point of intersection of the lines x+2y-3=0 and 2x-y+5=0 and parallel to the...
- Consider the following statements : 1. The length p of the perpendicular from the origin to the line ax+by=c satisfies the...