List of practice Questions

The area of the triangle formed by (-1, 2), (2, -1) and (0, 0) is
On which of the following factors does the focal length of lens depend?
Which among the following materials has higher refractive index?
The midpoint of line segment joining (x, y) and (-7, 5) is (4, 6). Then x=,y=
The points A(a, 2), B(3, 1), C(-1, 3) do not form a triangle if a=
If the points A(5, 3), B(8, 5), C(x, y) and D(7, 2) are consecutive vertices of a parallelogram then (x, y) = A(5, 3), B(8, 5), C(x, y)=
In an AP the 5th term is 24 and 12th term is 94, then the sum of first 20 terms is
The roots of a quadratic equation are irrational. Then
Sum of the squares of two consecutive even positive integers is 340. The numbers are
If the difference of reciprocals of ages of a boy three years ago and five years from now is then the present age of the boy in years is
\(f(x)=5x^4-9x^3-3x^2+11x-18\) is divided by \((x-2)\) then the remainder is
If the solutions of ax + by = 2 and bx+y=5 are 4, 6 then a =
A ball is thrown from the top of a building of height 25 m with an initial velocity of 15 m/sec. If the height of the ball h from ground at any point of time t is given by \(h=25+10t-3t^2\). The time taken by the ball to reach the ground is
\(\sqrt{3}x + \sqrt{2}y = 2\sqrt{2}\) ; \(\sqrt{2}x - \sqrt{3}y = 3\sqrt{3}\) implies \(x=,y=\)

If \(-1,-2\) are two zeros of a polynomial \(2x^3+ax^2+ bx-2\). then \((a, b) =\)

How many sides will be there in a polygon having 54 diaggonals?
The roots of \(2x-\frac{2}{x}= 3\) are 
How many subsets the set P= (a, e, i, o, u) will have?
n(A)=8, n(B)=9, n(A∩B)=6 where A and B are two sets, then n(AUB)=
If A is the set formed by the letters of the word 'POSSESSIVENESS' then n(A) =
\((A-B)∪(B-A)=\)
If \(-75=9a+b\) where \(0 ≤ b <9\),\( a, b\) are unique integers, then \(b =\)
\(2^x=(0.2)^y=100\), then implies \(\frac{1}{x}-\frac{1}{y}=\)
A composite number can be written as a product of prime numbers in
The HCF and LCM of 48, 72 and 60 are