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CBSE And NCERT Materials:

Unit Test Papers for Class 10 Mathematics english Medium 1 Real Numbers

Select Your Subject: CBSE English Medium

 

Student's BagUnit TestClass 10th Mathematics 1 Real Numbers
Page 1 of 3

1 Real Numbers

 

Unit test - I

 

ATP Model Unit Test

 Mathematics (X) 

Real Numbers

Timing: 1 hour                                   unit-1                                   M. M - 20 


 

MCQ:  1 mark                        SECTION – A 

 

Q1.   When we apply Euclid’s division lemma, to c and d. So, we find whole                 numbers, q and r such that c = dq + r, 0 ≤ r < d. then

         जब हम संख्या c और d पर यूक्लिड विभाजन लेम्मा का प्रयोग करते है, हम पूर्ण संख्या

         q तथा r इसप्रकार पाते है कि c = dq + r, जहाँ 0 ≤ r < d तब;  

        (a)        c > d          (b)     c < d              (c)      c  d            (d)     c d

 

Q2.   For any two positive number x = 23 × 32 × 5 and y = 22 × 35 × 7

         then HCF (x, y) will be

किसी दो धनात्मक संख्या के लिए जहाँ x = 23 × 32 × 5 तथा y = 22 × 35 × 7 है,

तब HCF (x, y) होगा

         (a)      22 ×  32        (b)       23 ×  35       (c)    23 × 32 × 5  (d)     22 × 35 × 7

 

Q3.   Which is not an irrational number?

         कौन-सा अपरिमेय संख्या नहीं है ?

         (a)        2 + √ 3        

         (b)    √ 7 – (√ 7 + 3)     

         (c)      (3 - 2√ 7) -√ 7         

         (d)     3 - √ ​5

 

         

        (a)     Terminating                                     (b)     Non-terminating recurring

        (c)     Non-terminating non-recurring        (d)     None of these

 

Q5.  HCF (13, 19) will be;

        HCF (13, 19) होगा;

        (a)    65            (b)     190          (c)       1           (d)        130 

 

2 marks Questions:

      

Q6.  HCF (306, 657) = 9, find LCM (306, 657).

        HCF (306, 657) = 9 तो LCM (306, 657) ज्ञात कीजिये |

 

Q7.  Show that 5 × 3 × 7 × 2 + 7 is a composite number.

        दर्शाइए कि 5 × 3 × 7 × 2 + 7 एक भाज्य संख्या है |

 

3 marks Questions:

 

Q8.  Prove that 2 - √3 is an irrational number.

        सिद्ध कीजिये कि 2 - √3 एक अपरिमेय संख्या है | 

 

4 marks Questions:

 

Q9.    Show that any positive odd integer is of the form 4q + 1 or 4q + 3,

          where q is some integer.

          दर्शाइए कि कोई धनात्मक विषम पूर्णांक 4q + 1 या 4q + 3 के रूप का होता है,

          जहाँ q एक पूर्णांक है |

Q10.  Find the LCM and HCF of 12, 15 and 21 using prime factorization                         method.

          12, 15 और 21 का LCM तथा HCF अभाज्य गुणनखंड विधि से ज्ञात कीजिये | 

<----The End ---->

 

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