The software which cannot be used for school mathematics learning is :

Which of the following is not related to diagnostic evaluation ?

What do we get on simplifying the expression $\frac{x}{x+1}+\frac{x+1}{x}-\frac{1}{x(x+1)}$ ?

For a given data , teh mean is 50 and the mode is 32, find the median.

In , -25 an arithmetic sequence if 17 is the 3rd term, -25 is the 17th term then which term is -1 ?

The sum of cubes of first few even numbers is 1800. What is the sum of these numbers ?

If the radius of a cylinder is increased by 10% and height remains unchanged, then what is the percentage of increase in volume ?

How many numbers upto 200 are divisible by 4 and 6 together ?

If the surface area of a cube is 24 sq.cm, Then find the length of its diagonal.

What is the reminder when $4^{100}$ is divided by 7 ?

If A(2,3), B (4,6) , C(10,15) are three collinear points, then B divides the line segment joining A and C in the ratio :

Which of the following can be a value of n if the expression of $(x+\frac{1}{x^2})^n$ has a term independent of x ?

The arithmetic mean between two numbers is 75 and their geometric mean is 21. Find the numbers.

What is the eccentricity of the conic with equation 3y²-x²=108 ?

ABC is an isosceles triangle . AB= 4cm , AC= 8cm . What is the perimeter of triangle ABC ?

In triangle ABC , AB=3cm and

Sum of first n terms of an arithmetic sequence is 5n² + 2n. What is the 21st term of the sequence ?

$P(x)=x+x^2+x^3+...x^{2023}$ . What number is P(-1)

A two digit number is written on a paper slip and these are all put in a box. What is the probability that the product of the digits of a number drawn is a prime number ?

The average of 8 numbers is 100. The difference between the two greatest numbers is 20. Average of the remaining 6 numbers is 85. The greater number is :

Surface area of a solid sphere is 4 square centimeters. If it is cut into two hemispheres , what would be the surface area of each hemisphere ?

$P(x)=x^2+ax+b$ and P(-m)=P(-n)=0. Then (m+1)(n+1) is :

5 x 3 is the difference between a three digit number and the sum of its digits. Then what number is x ?

cos A = 0.8 , then what is tan A ?

a,b,c,d,e എന്നിവ സംഖ്യകളും a യുടെ b ശതമാനം c ഉം b യുടെ a ശതമാനം d ഉം a യുടെ രണ്ട് മടങ്ങിന്റെ b ശതമാനം e യും ആണ് . താഴെ പറയുന്ന പ്രസ്താവനകൾ പരിഗണിക്കുക :

c=d ആയിരിക്കും
c+d = e ആയിരിക്കും

1/2 + 1/4 + 1/8 + 1/16 = 1-x, then what number is x ?

P(x) is a first degree polynomial P(0)=3 and P(1)=0 . Then P(x) is :

Perimeter of a regular hexagon is 42 cm. What is the radius of its circumcircle ?

If the reciprocal of 1 -x is 1+ x then what number is x ?

What is the ratio of base radius and slant height of a cone made by rolling up a sector of central angle 60° ?

In a rectangle the length is increased by 40% and the breadth is decreased by 40% .Then the area is :

Which of the following numbers does not satisfy the property ? The sum of cubes of the digit is the number itself ?

$x-\frac{1}{x}=3$ then $x^3-\frac{1}{x^3}=$

The average of 8 numbers is 100. The difference between the two greatest number is 20. Average of the remaining numbers is 85. The greatest number is :

What is the ratio of the base radius and slant height of a cone ,ade by rolling up a sector of central angle 60° ?

The average speed of a car and bus are 80km/hr and 60km/hr respectively. The ratio of times taken by them for equal distance is :

Sum of first n terms of an arithmetic sequence is $5n^2+2n$ What is the 21st term of this sequence ?

A batsman scored 160 runs which includes 15 boundaries and 6 sixes. What percentage of his total score did he make by running between the wickets ?

First step in the project method of teaching is

Which of the following product is the largest ?

Which of the following is true ?

The units digit of $7^{2019}$ is

If the middle number of 25 consecutive natural numbers is 31, then the sum of all those numbers is

A sector of central angle 60° is cut off from a circle of radius 24 cm to form a cone. The base radius of the cone is

The base edges and lateral edges of a square pyramid are equal. If the base edge is 6 cm then the volume of the pyramid is :

Which of the following has maximum area if all have the same perimeter?

The tangents through the ends of two perpendicular diameters of a circle form which of the following quadrilaterals ?

If 1

If the angles of a triangle are in the ratio 30° , 75° and 75° then the sides are in the ratio

If a:b=2:3 , b:c = 4:5 ,c:d = 6:8 , then a:d is

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