If 2a + 3b = 17 and 2a +&

Subject

Mathematics

Class

TET Class 12

Pre Boards

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Sample Papers

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 Multiple Choice QuestionsMultiple Choice Questions

1.

If(29)75 is divided by 28, then remainder will be

  • 0

  • 1

  • 29

  • 7


2.

Given Pie-graph shows the cost of construction of a house. If total cost of construction is Rs 1500000, then the amount spent on labour is

  • Rs. 90000

  • Rs. 250000

  • Rs. 360000

  • Rs. 375000


3.

To introduce the concept of fraction teacher can start with

  •  to write the fraction in the form of ab where b  0

  • to introduce the fractional part of the things existing in the surrounding

  • to recognise the numerator and denominator in different types of fractions

  • to find out fraction on number line


4.

Which objective of learning is fulfilled to understand the concept and principles of mathematics?

  • Skill

  • Previous knowledge

  • Observation

  • Perception


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5.

If two complementary angles are in the ratio 2 : 3, then angles will be

  • 25°, 65°

  • 108°, 72°

  • 36°, 54°

  • 40°, 60°


6.

2 tables and 3 chairs together cost Rs. 2000 where as 3 tables and 2 chairs together cost Rs. 2500. Then, the total cost of 1 table and 5 chairs are

  • Rs. 1800

  • Rs. 1700

  • Rs. 1900

  • Rs. 2000


7.

How many bricks will be required to construct a wall 3 m long, 1.5 m high and 0.4 m thick, if each brick measures 30 cm x 15 cm x 8 cm ?

  • 502

  • 550

  • 500

  • 501


8.

If x - 1x = 12, then the value of 4x2 + 4x2 is

  • 7

  • 9

  •  - 7

  •  - 8


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9.

If 2a + 3b = 17 and 2a +2 - 3b + 1 = 5, then the value of a and b is

  • 6, 5

  • 3, 2

  • 8, 5

  • 7, 8


B.

3, 2

 According to the question,2a + 3b = 17 and 2a +2 - 3b + 1 = 5 4 . 2a - 3 . 3b = 5 4 . 2a + 4 . 3b - 7 . 3b = 5 42a + 3b - 7 . 3b = 5 68 - 5 = 7 × 3b 7 × 3b = 63 3b = 9 3b = 32    b = 2

Now, 2a +32 = 17 2a = 17 - 9 2a = 8 2a = 23    a = 3


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10.

The value of 1 - 121 - 131 - 14 ... 1 - 1n - 11 - 1n will be

  • nn + 1

  • 15n

  • 13n

  • 1n


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