NDA questions
2827 published questions with worked solutions.
- The minimum distance from the point (4, 2) to y^2=8x is equal to
- The differential equation of the system of circles touching the y-axis at the origin is
- Consider the following in respect of the differential equation : d^2y dx^2 +2 ( dy dx )^2+9y=x 1. The degree of the differential...
- What is the general solution of the differential equation dy dx + x y =0?
- The value of k which makes f(x)= cases x & x 0 k & x=0 cases continuous at x=0, is
- What is the minimum value of a^2x+b^2y where xy=c^2?
- What is e^ x (a) ,dx equal to?
- What is the area of one of the loops between the curve y=c x and x-axis?
- If + = 2 , then what is ( - ) equal to?
- If =- 1 2 and = 1 3 , then in which quadrant does lie?
- How many three-digit even numbers can be formed using the digits 1, 2, 3, 4 and 5 when repetition of digits is **not** allowed?
- The angle of elevation of a tower of height h from a point A due South of it is x and from a point B due East of A is y. If AB=z,...Not in JEE syllabus
- If A and B are two events such that P(A)=0 5, P(B)=0 6 and P(A B)=0 4, then what is P( A B ) equal to?
- A problem is given to three students A, B and C whose probabilities of solving the problem are 1 2 , 3 4 and 1 4 respectively....
- A pair of fair dice is rolled. What is the probability that the second dice lands on a higher value than does the first?
- A fair coin is tossed and an unbiased dice is rolled together. What is the probability of getting a 2 or 4 or 6 along with head?
- If A, B, C are three events, then what is the probability that at least two of these events occur together?
- If two variables X and Y are independent, then what is the correlation coefficient between them?
- Two independent events A and B are such that P(A B)= 2 3 and P(A B)= 1 6 . If P(B)<P(A), then what is P(B) equal to?
- If two fair dice are rolled then what is the conditional probability that the first dice lands on 6 given that the sum of numbers...