Concept Booster - Mathematics

Descrição

This 15 questions test will help the students for revising their concepts during the preparation of entrance examination.
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Quiz por vishaljagetia, atualizado more than 1 year ago
vishaljagetia
Criado por vishaljagetia mais de 8 anos atrás
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Resumo de Recurso

Questão 1

Questão
Consider the equation p = 5 - |2q-3| If p = 4 then possible values of q are
Responda
  • 2, 1, -1
  • -1, 1 only
  • 1 only
  • 2, 1 only

Questão 2

Questão
Consider the equation p = 5 - |2q-3| If p = |r| + 5, then number of possible ordered pair (r, q) is/are
Responda
  • 1
  • 2
  • 4
  • Infinite

Questão 3

Questão
The straight line 2x + 5y - 1 = 0 and 4ax - 5y + 2 = 0 are Mutually perpendicular, then the value of 'a' will be
Responda
  • 25/8
  • -1/2
  • -25/8
  • 1/2

Questão 4

Questão
ABC is a triangle. The coordinates of whose vertices are (-2, 4), (10, -2) and (-2, -8). G is the centroid of triangle ABC, then area of the triangle GBC is equal to
Responda
  • 27
  • 35
  • 82
  • None of these

Questão 5

Questão
Solve for x, where [ . ] represents greatest integer function and { . } represent fractional part function.
Responda
  • | [x] - 2x | = 4
  • [ x -1 ] + [ 1 - x] + x - {x} >0
  • | [x] + 2x| < 4
  • None of these

Questão 6

Questão
Given two straight lines x - y - 7 = 0 and x - y + 3 = 0. Equation of a line which divides the distance between them in the ratio 3 : 2 (internally) can be :
Responda
  • x - y - 3 = 0
  • x - y - 1 = 0
  • y = x
  • x - y + 1 = 0

Questão 7

Questão
Sum of an infinite G.P. is 5/4 times the sum of all the odd terms. The common ratio of the G.P. is
Responda
  • 4
  • 1/3
  • 1/4
  • None of these

Questão 8

Questão
Let (2, -1) be the point P and x - y + 1 = 0 be the straight line S. If Q is image of point P about line S, then image of point Q about y- axis is
Responda
  • (-2, 3)
  • (2, 3)
  • (3, 4)
  • (-3, 4)

Questão 9

Questão
The middle point of the sides of a triangle are (-4, 2), (6, -2) and (7, 9). The centroid of the triangle is
Responda
  • (6, -2)
  • (9, 9)
  • (3, 3)
  • cannot be found

Questão 10

Questão
Every body in a room shakes hands with everybody else. The total number of hand shakes is 66. The total number of person in the room is n
Responda
  • Last digit of n is 2
  • Sum of digit of n is 3
  • product of digit of n is 2
  • All of the above

Questão 11

Questão
Numbers of natural numbers smaller than ten thousand and divisible by 4 using the digits 0, 1, 2, 3 and 5 without repetition is n then
Responda
  • n = 31
  • n is divisible by 5
  • n is divisible by 3
  • None of these

Questão 12

Questão
The remainder obtained when 1! + 2! + 3! + ...........+ 200! is divided by 14 is
Responda
  • 3
  • 4
  • 5
  • None of these

Questão 13

Questão
In a G.P. the ratio of the sum of the first eleven terms to the sum of the last eleven terms is 1/8 and the ratio of the sum of all the terms without the first nine to the sum of all the terms without the last nine is 2. Then the number of terms of the G.P. is less than.
Responda
  • 15
  • 43
  • 38
  • 56

Questão 14

Questão
If the difference between mean and mode is 63, the difference between mean and median is
Responda
  • 189
  • 21
  • 31.5
  • 48.5

Questão 15

Questão
For finding average speed of a vehicle covering equal distances in different time intervals, we prefer to use
Responda
  • A.M.
  • G.M.
  • H.M.
  • Median

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