Maths Practice Question and Answer

Q:

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

I. x2- 12x + 35 = 0

II. y2- 25y + 126 = 0

791 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
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Answer : 3. "x ≥ y"

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Answer : 1. "3 : 4"

Q:

While selling a watch, a shop- keeper gives a discount of 5%. If he gives a discount of 7%, he earns ₹15 less as profit. The marked price of the watch is 

789 0

  • 1
    ₹ 697.5
    Correct
    Wrong
  • 2
    ₹ 712.5
    Correct
    Wrong
  • 3
    ₹ 750
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 3. "₹ 750 "

Q:

Directions : The Bar Graph given here shows the population (in crores) of India in various census years. Observe the graph and answer the question based on it.

The per cent increase in population from 1971 to 1981 is

788 0

  • 1
    24.8%
    Correct
    Wrong
  • 2
    20%
    Correct
    Wrong
  • 3
    16.7%
    Correct
    Wrong
  • 4
    22.9%
    Correct
    Wrong
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Answer : 1. "24.8% "

Q:

if $${secθ={a\over b},b≠0,then \ {{1-tan^2θ}\over 2-sin^2θ}  }=?$$

788 0

  • 1
    $${b^2(2b^2-a^2)}\over {a^2(a^2+b^2)}$$
    Correct
    Wrong
  • 2
    $${a^2(2b^2-a^2)}\over {b^2(a^2+b^2)}$$
    Correct
    Wrong
  • 3
    $${a^2(2b^2+a^2)}\over {b^2(a^2+b^2)}$$
    Correct
    Wrong
  • 4
    $${a^2(2b^2+a^2)}\over {b^2(a^2-b^2)}$$
    Correct
    Wrong
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Answer : 2. "$${a^2(2b^2-a^2)}\over {b^2(a^2+b^2)}$$"

Q:

In the given question, two equations numbered l and II are given. You have to solve both the equations and mark the appropriate answer.

I. 16x2– 32x + 15 = 0

II. 16y2– 48y + 35 = 0

788 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 no relationship could be established
    Correct
    Wrong
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Answer : 4. "x ≤ y"

Q:

What should come in place of the question mark '?' in the following number series?

7, 13, ?, 49, 97, 193

788 0

  • 1
    27
    Correct
    Wrong
  • 2
    23
    Correct
    Wrong
  • 3
    25
    Correct
    Wrong
  • 4
    29
    Correct
    Wrong
  • 5
    34
    Correct
    Wrong
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Answer : 3. "25"

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Answer : 1. "1.2 "

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