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- 1. ShakehandwithLife.in Practice Set I With Answer Key Time – 120 Minutes Max. Marks :100 No. of Questions: 100 E-Book Code : QTPS1 by Narender Sharma “Save Paper, Save Trees, Save Environment”
- 2. www.shakehandwithlife.in Page 1 www.shakehandwithlife.in E-mail : shakehandwithlife@gmail.com , narender@shakehandwithlife.in Click on Contents Multiple Choice Questions ............................................................................................................................................................................ 2 Answer Key ...................................................................................................................................................................................................... 16 Feedback ........................................................................................................................................................................................................... 17
- 3. www.shakehandwithlife.in Page 2 Multiple Choice Questions Que. 1 The function ( ) is A) An even function B) An odd function C) Both even and odd function D) Neither even nor odd function. Que. 2 The value of | | + , - at x = -2 is equal to A) 4 B) 6 C) -6 D) None Que. 3 Which of the following is not a function? A) ( ) , * + B) { } C) { } D) Que. 4 If ( ) , then A) ( ) ( ) B) ( ) ( ) C) , ( )- D) ( ) ( ) Que. 5 The local maximum and local minimum values of the function are A) 18 , -14 B) -14 , -18 C) 18 , 14 D) none Que. 6 nth term of an A.P. where “a” is first term and “d” is common difference. A) ( ) B) ( ) C) ( ) D) ( ) Que. 7 The 5th term of an A.P. is 10 and 10th term is zero, then its 20th term is A) -18 B) 20 C) -20 D) 18 Que. 8 The 3rd term of an A.P. is 25 and the 10th term is -3. Then first term (a) and common difference(d) are A) a =33 , d= - 4 B) a=30, d=2 C) a=32 , d=-2 D) a=33 , d= 4 Que. 9 Sum of n terms of an A.P. where “a” is first term and “d” is common difference A) , ( ) - B) , ( ) - C) , ( ) - D) , ( ) -
- 4. www.shakehandwithlife.in Page 3 Que. 10 Sum of all natural numbers between 200 and 400 which are divisible by 7 is A) 8730 B) 8727 C) 8728 D) 8729 Que. 11 nth term of a G.P. A) B) C) D) Que. 12 Sum of G.P. series is given by A) ( ) B) ( ) C) ( ) D) ( ) Que. 13 In a G.P. , common ratio is 2 and 4th term is 24. Then the sum of series to 5 terms is A) 92 B) 93 C) 94 D) 95 Que. 14 The sum of four distinct numbers in G.P. is 60 and the arithmetic mean of the first and last is 18. Then the numbers are A) 2, 4, 8, 16 or 16, 8, 4, 2 B) 4, 8, 16, 32 or 32, 16, 8, 4 C) 8, 16, 32, 64 or 64, 32, 16, 8 D) 16, 32, 64, 128 or 128 , 64, 32, 16 Que. 15 Sum terms of the A.P. , , , 3, ………… A) 625 B) 626 C) 628 D) 629 Que. 16 A and B are two invertible matrices then the inverse of AB is equal to A) AB B) BA C) D) Que. 17 The inverse of Symmetric matrix is A) Symmetric B) Skew –Symmetric C) Diagonal matrix D) None of these Que. 18 The inverse of diagonal matrix is A) A symmetric matrix B) A skew- symmetric matrix C) A diagonal matrix D) None of these Que. 19 If A, B are square matrices if the same order, then Adj. (AB) is equal to A) (Adj. A) (Adj. B) B) (Adj. B ) (Adj. A)
- 5. www.shakehandwithlife.in Page 4 C) (Adj. A )+ (Adj. B) D) (Adj. A ) - (Adj. B) Que. 20 If matrix A is such that 3 3 then A) –(3 ) B) 3 C) 3 D) None of these Que. 21 Let [ 33 ], [ 33 3] ( ) is A) B) C) D) None of these Que. 22 [ 3 3 ], [ 3 ] then [ ] is A) 3 B) C) 3 D) 3 Que. 23 If [ 3 ] then | | is equal to A) 1 B) -1 C) 13 D) -13 Que. 24 If [ 3 3 ], then which of the following co-factor is wrong A) B) C) D) 3 Que. 25 If [ 3 ] then is A) -34 B) -19 C) -79 D) 22 Que. 26 The means of a set of numbers is ̅. If each numbers is divided by 3, then new mean is A) ̅ B) ̅ 3 C) 3 ̅ D) ̅ Que. 27 The weighted AM of first ‘n’ natural numbers whose weights are equal to the corresponding numbers is equal to A) B) ( )

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