I. Choose the correct answer: × =
1. Which one of the following statement is true?
(a) Every natural number is a whole number (b) Every integer is a whole number
(c) Every rational number is awhole number (d) None ofthese
2. √3 is
(a) a natural number (b) not a real number (c) a rational number (d) an irrational
number
3. The product of a non-zero rational and an irrational number is
(a) always irrational (b) always rational (c) rational or irrational (d) one
4. The value of k for which (–4) is a zero of the polynomial x2 – x – (2k +2) is
(a) 3 (b) 9 (c) 6 (d) –1
5. A quadratic polynomial whose zeroes are –3 and 4 is
(a)x2 – x +12 (b) x2 +x + 12 (c) 2x2 + 2x – 24 (d) none of the above.
6. A quadratic polynomial whose sum and product of zeroes are 0 and 5 is
(a)x2 – 5 (b) x2 + 5 (c) x2 + x – 5. (d) none of the above.
7. Thesumof6th and7th termsofanAPis39andthe commondifference is3,thenthe firsttermofAPis:
(a) 2 (b) –3 (c) 4 (d) 3
8. The 9th term from the end of the AP, 7, 11, 15, …, 147 is:
(a) 135 (b) 125 (c) 115 (d) 110
9. The number of terms in 2, 5, 8, …, 59 is:
(a) 12 (b) 19 (c) 20 (d) 25
10. How many 2 digit numbers are divisible by 5?
(a) 18 (b) 19 (c) 21 (d) 22
Answers
Answered by
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Answer:
1)(a)Every natural number is a whole number
2(d)An irrational number
Step-by-step explanation:
1)Eg: 1,2,3,5,8,10,etc are natural numbers and as well as whole numbers
2)√3 cannot be represented in the form of p/q were q=0. So its an irrational number
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