17:04

If all the letters of the word SEQUESTERED be arranged as in a dictionary, what is 50th word?

09:48

How many even numbers greater than 300 can be formed with the digits 1, 2, 3, 4, 5 no digit being

09:54

In how many different ways can 8 examination papers be arranged in a row, so that the best and the

06:56

In how many ways can 5 girls and 3 boys stand in a row so that no two boys are together?

07:00

A person has 3 shirts 4 coats and 6 ties. In how many ways can he wear them?(a) 27(b) 36(c) 72(d)130

05:40

How many four digit numbers can be formed with the digits 0, 2, 3, 5, 8, 9 if(i) repetition of digit

03:16

How many 3 digit number can be formed if repetition of digits is allowed?

04:02

How many 3 digit number can be formed whose unit digit is always zero and repetition of digits is

05:41

If in a biased coin the probability of the occurrence of tail is thrice the probability of head, the

04:51

The points (0, 1), (2, 1), (0, 3) and (-2, 1) are the vertices of a(A) Parallelogram(B) Square

02:09

If x = 2 + √3 , then the value of x² + 1/x² will be

02:59

If the sum of n terms of an arithmetic progression is nP + 1/2 * n(n - 1) * Q , where P and Q are

04:19

A train overtakes two persons walking along a railway track. The first one walks at 4.5 km/hr. The o

05:38

A train with a speed of 90 km/hr crosses a bridge in 36 seconds. Another train 100 metres shorter

03:34

A train 108 m long moving at a speed of 50 km/hr crosses a train 112 m long coming from the opposit

05:08

Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite

04:06

A train 110 m long passes a man running at a speed of 6 km/hr in the direction opposite to the train

04:20

Two trains travel in the same direction at 50 km/hr and 32 km/hr respectively. A man in the slower

04:58

If a train with a speed of 60 km/hr crosses a pole in 30 seconds, what is the length of the train in

04:09

Let aₙ be an arithmetic progression and a₆= 32. Also, a₅ - a₃ = 10, then the value of (a₈ / 7) is

05:24

From the top of a tower of height h, angles of depression of two points, which are in line with the

03:11

Choose the correct option which represents the polar form of the equation x² - y² = 2ay .

02:50

The sum of the digits of a natural number (10ⁿ -1) is 369, where n is a natural number. value of n

05:26

Find the values of a and b, if the symbols have their usual meanings.(A) a=3 b=2(B) a=9 b=6(C) a=3

06:38

In the given figure, RST is the tangent to the circle with centre O, at S. AOS is a straight line

03:37

The set of real values of x satisfying | x - 1 | ≤ 3 and | x- 1 | ≥ 1 is

05:51

In the figure, CDE is a straight line and A,B,C&D are points on the circle. ∠BCD=44°,find the value

11:25

Two isolated spherical conductors have radii 5 cm and 10 cm respectively. They have charge of 12 μC

05:03

Given the equation→Angular Momentum=(αβ − γ/time)×velocity which of the following are possible dimen

01:46

The dimension of 1/µ₀∈₀ where µ₀ represents vacuum permeability and ∈₀ represents vacuum permittivi

04:15

Planck's constant has the dimension of: (a) Energy (b) Momentum (c) Frequency (d) Angular momentum

03:37

If force(F), acceleration(A), Time(T) are used as fundamental units, the dimensional formula for len

03:58

Solve: log(cot1) + log(cot2) +......+log(cot89)

04:47

if cot 15° = m , then find ( cot 165 + cot 345 ) / ( tan 15 - cot 105 )

03:07

If ABCD is a cyclic quadrilateral, then find the value of cosAcosB - cosCcosD.

06:21

If sin θ and cos θ are the roots of the equation mx² + nx + 1 =0, then find the relation between m&n

02:39

Find the 7th term of G.P. whose first term is 6 and common ratio is 2/3.

08:36

Divide 124 into four parts in such a way that they are in A.P. and the product of first and the 4th

04:52

Find the three terms in A.P. , whose sum is 36 and product is 960.

10:40

solve: [ 1 / ( x - 1 ) ] is less then [ -2 / ( 1 - 2x) ]

07:26

solve for x: x² - 4x + 3 ≥ 0

05:09

Find the first term and the common difference of an A.P. if the 3rd term is 6 & the 17th term is 34

05:07

If | x | is less than 1, then find the sum of the series 2 + 4x + 6x² + 8x³ +........

03:26

The mass of the earth is 6 × 10²⁴ kg and its radius is 6400 km. Find the acceleration due to gravity

09:50

A wooden block of mass 'm' kg is pulled up an inclined plane having an inclination ' θ ' with the ho

08:09

A block of 2 kg mass dropped from a height of 2.1 m, falls on a spring of length 10 cm placed vertic

06:51

A Pakistani player shoab Akhtar bowls a cricket ball of mass 250g with a speed of 120 km/h towards

06:24

A perosn can buy 15 book less for ₹900 when the price of each book goes up by ₹3. Find the original

04:14

Form a quadratic equation with rational coefficients one of whose roots is 3 + √5 .

02:57

If the sum of the roots of the equation kx² - 3x + 9 = 0 is 3/11 , then find the product of the root

02:05

Form the quadratic equation whose roots are 2 and 7.

09:34

find the sum of rational expression: (2x - 3) / (x² + x - 2) and (3x - 1) / (2x² + 5x + 2)

03:41

A 2kg block is dropped from a height of 5m. What is the potential energy and kinetic energy of the

08:17

Solve 4x + 5y = 71 and 5x + 3y = 66 by cross-multipication method .

05:16

problem based on conservation of energy...

03:56

A certain simple pendulum has a period of 2s. What will its period be whenthe lengthofpendulumdouble

02:08

A cable of an electric motor exerts a force of 30 N on a body and pulls it through a distance of 20m

02:19

A body of mass 2kg is accelerated from rest to a velocity 20 m/s in 5 s. What is the work done and p

03:04

Find the mean proportion between 13 and 52 .

05:12

A bomb of mass 6kg initially at rest explodes into two fragments of mass of 4kg and 2kg respectively