CHAPTER: 1 REAL NUMBERS X E/M MATHS

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THIS IS FINAL TEST AFTER COMPLETING REAL NUMBERS CHAPTER WRITE THIS TEST IF YOU GET 0 TO 4 MARKS POOR PERFORMANCE AGAIN PRACTICE THIS CHAPTER THEN TAKE TEST IF YOU GET 5 TO 8 MARKS GOOD PERFORMANCE IF YOU GET 9 AND 10 MARKS VERY GOOD PERFORMANCE

DR. A. YAKAIAH, S.A(MATHS),GHS LALAPET, HYDERABAD.

Name of the candidate *

School name, Mandal and District. *

1. The product of three consecutive positive integers is divisible by

1 point

(A) 5

(B) 6

(D) 8

Clear selection

2. 'x' and 'y' are positive integers, If y is a multiple of ‘x’ then LCM of 'x' and 'y' is.

1 point

(A) x

(B) y

(D) x/y

Clear selection

3. 'p' is an integer , every even integer is of the form

1 point

(A) 2p + 1

(B) 2p

(D) p -1

Clear selection

4. The decimal form of the rational number 97/(2x625) will terminate after:

1 point

(A) one decimal place

(B) two decimal places

(D) four decimal places

Clear selection

5. Euclid’s division lemma states that for two positive integers 'a' and 'b', there exist unique integer 'q' and 'r' such that a = bq + r, where 'r' must satisfy

1 point

(A) 0 < r < b

(B) 0 < r ≤ b

(D) 0 ≤ r ≤ b

Clear selection

6.The ratio between the LCM and HCF of 5, 15, is:

1 point

(A) 3 : 1

(B) 1:3

(D) 15:5

Clear selection

7. sum of the prime factors of 462 is

1 point

(A) 46

(B) 23

(D) 12

Clear selection

8. Which among the following is not an irrational

1 point

(A) 3.122333444455555…....................

(B) 10.172172172........................

(D) log2 + 1093

Clear selection

9.Which of the following is not TRUE

1 point

(A) log (1 + 2 + 3) = log 1 + log 2 + log 3

(B) log (2 + 3) = log (3 x 2)

(C). log10 = 1

(D) log1 = 0

Clear selection

10. If log 27 = 1.431, then the value of log 81 is:

1 point

(A) 0.908

(B) 1.431

(D) 1.908

Clear selection

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