1.
Which of the following terms and conditions must be there if ax² + bx + c = 0 is to be a quadratic equation?
2.
The discriminant of the equation x2 – 7x + 2 = 0 is
3.
Period of the decimal 2.3636363……. is :
4.
In case of discounted sale, the sales tax is calculated on the printed price. Is it true or false?
5.
A system of two linear equations having same two variables but having no solution is known as inconsistent system of linear equation.
6.
Which of the following is not correct about the properties of a circle?
7.
After how many decimals will a fraction with denominator 320 will terminate?
8.
The maximum value of 23 – |2x + 3 | is
9.
Find the ratio of the circumference of the circle and the length of the arc of the sector of a circle having angle 72º.
10.
In a polygon, the greater angle is 110° and all the angles are distinct but equal in degrees. Find the maximum number of sides it can have.
11.
What should be subtracted from x³ + 2x² -3x +6, so that the difference is a multiple of x − 2 ?
12.
If the quadratic x2 + ( a – 4 ) x + ( a + 4 ) is a perfect square, then a = ________
13.
In logarithms, which of the given options is true?
14.
Which of the following is an irrational number?
15.
In logarithms, which of the given options is true?
16.
A 60 m high tower caste a shadow of 40 m long on the ground. What will be the length of the shadow of a needle 9 cm long at the same time?
17.
A circular wheel of radius 7 cm rotates inside another bigger wheel and cover the full circumference in 10 rotations. Find the diameter of bigger wheel?
18.
In a circle, there is 30 cm long chord. If the radius of the circle is 17 cm, find the distance of chord from the center.
19.
In a right angled triangle, one of the perpendicular sides is 4 cm greater than the other and 4 cm lesser than the hypotenuse. Find the area of triangle in cm2 ?
20.
If 64 > x³, then the greatest possible integer value of x is :
