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The document contains a list of previous questions from various examinations, primarily focused on logarithms, rational numbers, and basic arithmetic concepts. Each question is followed by multiple-choice answers, indicating the format of the assessments. The questions cover topics such as the properties of logarithms, decimal expansions, and number theory.

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22 views1 page

1

The document contains a list of previous questions from various examinations, primarily focused on logarithms, rational numbers, and basic arithmetic concepts. Each question is followed by multiple-choice answers, indicating the format of the assessments. The questions cover topics such as the properties of logarithms, decimal expansions, and number theory.

Uploaded by

winfieldonlineclass
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Previous Questions

1. If log10 2  0.3010 then log10 32 is [TS June-2019]


1) 5.3010 2) 2.3010 3) 1.5050 4) 0.3010
2. The exponential form of log a x 4  y is [TS March-2019]
1) a y  x 4 2) y a  4 3) a y  x 2 4) x y  a2
3. The last (unit place) digit of 62019 in its standard form. [TS March-2019]
1) 6 2) 4 3) 9 4) 19
4. The decimal expansion of 0.225 in its rational form is, [TS June-2018]
225 225 9
1) 225 2)2 3) 4 4)
10 10 40
5. Every even positive integer can be written in the form of ______.
[TS June-2018]
1) 2 p  1 p  Z  2) 2 p  1 p  Z  3) 2 p  p  Z  4) 3 p  p  Z 
   

6. If log 3 729  x , then the value of x is, [TS March-2018]


1) 9 2) 243 3) 81 4) 6
7
7. The number of digits in the fractional part of the decimal form of is
40
[TS March-2018]
1) 1 2) 2 3) 3 4) 4
8. In the rational form of a terminating decimal number prime factor of the
denominator is [TS June-2017]
1) Only 2 2) Only 5 3) 2 or 5 only 4) Any prime
9. log10 2  log10 5 value = ________. [TS June-2017]
1) 1 2) 2 3) 5 4) 10
10. If P1 and P2 are two odd prime numbers, such that P1 > P2 , then P12  P22
is ________. [TS March-2017]
1) An even number 2) An odd number
3) A prime number 4) An odd prime number
11. The logarithmic form of a b  c is [TS June-2016]
1) log a c  b 2) log b c  a 3) log a b  c 4) log b a  c
12. If 3log  x  3  log 27 , then the value of x [TS June-2016]
1) 0 2) 1 3) 6 4) 24
13. Which one of the following rational numbers has terminating decimal
expression [TS June-2016]
11 91 343 21
1) 2) 3) 3 3 3 4)
7000 21000 2 5 7 9000
14. Which one of the follwoing is not rational number. [TS March-2016]
10
1) log10 3 2) 5.23 3) 123.123 4)
19
15. LCM of 24, 36 is [TS March-2016]
1) 24 2) 36 3) 72 4) 864

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