When 732 is subtracted from the square of a number, the answer th

Subject

Mathematics

Class

TET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

In the textbook of Mathematics the content
should be developed

  • in the order of exercise

  • in logical order

  • in problematic order

  • All of the above


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2.

When 732 is subtracted from the square of a number, the answer that is obtained is 5280. What is the number?

  • 97

  • 103

  • 99

  • 101


B.

103

x2 - 732 = 5280 x2 = 5280 + 5239 =10609or x = 10609 = 103Note that calculating 10609 isn't required here. Square of only two options (97 or 103) ends in 9. But 972 < 1002 = 10000. so 10609 = 103 


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3.

ind te value of 1.44 × 0.810.9 × 3.6 = ?

  • 0.6

  • 0.5

  • 1

  • 0.75


4.

Which of the following numbers is divisible by both 4 and 9 ?

  • 2368

  • 2736

  • 3954

  • 3814


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5.

What should be added to 51234, to make it divisible by 9 ?

  • 6

  • 4

  • 3

  • 5


6.

The ratio of the length to the breadth of a rectangle is 2 : 1. Its perimeter is 60 cm, find its area.

  • 250sq cm

  • 200 sq cm

  • 300 sq cm

  • 205 sq cm 


7.

Find the square root of 1234567654321.

  • 1121121

  • 111111

  • 1112111

  • 1111111


8.

On decreasing the radius of a sphere by 20%, by what per cent its volume will be decreased?

  • 20

  • 28.8

  • 57.6

  • 48.8


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9.

If the area of a circle is A, radius of circle is r and circumference ofit is C, the

  • rC = 2A

  • CA = r2

  • AC = r24

  • Ar = C


10.

A number when tripled and decreased by 15 we get the result as 120. Find the number

  • 45

  • 40

  • 42

  • 50


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