Maths Practice Question and Answer

  • Show AnswerHide Answer
  • Workspace

Answer : 4. "1997"

Q:

A solid metallic sphere of radius 15 cm is melted and recast into spherical balls of radius 3 cm each. What is the ratio of the surface area of the original sphere and the sum of the surface areas of all the balls?

886 0

  • 1
    1 : 5
    Correct
    Wrong
  • 2
    5 : 27
    Correct
    Wrong
  • 3
    1 : 10
    Correct
    Wrong
  • 4
    3 : 40
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "1 : 5"

Q:

The value of 4÷12 of [3÷4 of {(4-2) x 6÷2}] -2x6÷8+3 is:

886 0

  • 1
    $$4{1\over 6}$$
    Correct
    Wrong
  • 2
    $$3{1\over 3}$$
    Correct
    Wrong
  • 3
    $$2{1\over 3}$$
    Correct
    Wrong
  • 4
    $$7{1\over 6}$$
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "$$4{1\over 6}$$"

Q:

The difference between a number and the square root of the number is 2. The number is:

885 0

  • 1
    1
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "4"

Q:

if $${x\over 9}+{8\over x}=1$$, then the value of x3 is :

885 0

  • 1
    -256
    Correct
    Wrong
  • 2
    -512
    Correct
    Wrong
  • 3
    256
    Correct
    Wrong
  • 4
    512
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "-512 "

Q:

Direction: What approximate value will come in place of the question mark (?) in the following question? (You are not expected to calculate the exact value)

? × 350.01 ÷ 3.992= 983 ÷ 14.001

885 0

  • 1
    1.2
    Correct
    Wrong
  • 2
    1.8
    Correct
    Wrong
  • 3
    2.8
    Correct
    Wrong
  • 4
    3.2
    Correct
    Wrong
  • 5
    4
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "3.2"

Q:

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x2 - 19x + 60 = 0

II. y2- 20y + 99 = 0

885 0

  • 1
    x > y
    Correct
    Wrong
  • 2
    x < y
    Correct
    Wrong
  • 3
    x ≥ y
    Correct
    Wrong
  • 4
    x ≤ y
    Correct
    Wrong
  • 5
    x = y or relationship between x and y cannot be established
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 5. "x = y or relationship between x and y cannot be established"

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully