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Statement 1: the number of ways of writi...

Statement 1: the number of ways of writing 1400 as a product of two positive integers is 12.
Statement 2: 1400 is divisible by exactly three prime factors.
(a) Statement 1 and Statement 2 , both are correct. Statement 2 is correct explanation for Statement 1.
(b) Statement 1 and Statement 2 , both are correct. Statement 2 is not the correct explanation for Statement 1.
(c) Statement 1 is correct but Statement 2 is not correct.
(d) Statement 2 is correct but Statement 1 is not correct.

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Statement 1: The number of positive integral solutions of a b c=30 is 27. Statement 2: Number of ways in which three prizes can be distributed among three persons is 3^3 (a) Statement 1 and Statement 2 , both are correct. Statement 2 is correct explanation for Statement 1. (b) Statement 1 and Statement 2 , both are correct. Statement 2 is not the correct explanation for Statement 1. (c) Statement 1 is correct but Statement 2 is not correct. (d) Statement 2 is correct but Statement 1 is not correct.

Statement 1: Through (lambda,lambda+1) , there cannot be more than one normal to the parabola y^2=4x , if lambda (a) Statement 1 and Statement 2 , both are correct. Statement 2 is correct explanation for Statement 1. (b) Statement 1 and Statement 2 , both are correct. Statement 2 is not the correct explanation for Statement 1. (c) Statement 1 is correct but Statement 2 is not correct. (d) Statement 2 is correct but Statement 1 is not correct.

Consider two circles x^2+y^2-4x-6y-8=0 and x^2+y^2-2x-3=0 Statement 1 : Both the circles intersect each other at two distinct points. Statement 2 : The sum of radii of the two circles is greater than the distance between their centers. (a) Statement 1 and Statement 2 , both are correct. Statement 2 is correct explanation for Statement 1. (b) Statement 1 and Statement 2 , both are correct. Statement 2 is not the correct explanation for Statement 1. (c) Statement 1 is correct but Statement 2 is not correct. (d) Statement 2 is correct but Statement 1 is not correct.

Statement 1 : The area of the triangle formed by the points A(1000 ,1002),B(1001 ,1004),C(1002 ,1003) is the same as the area formed by the point A^(prime)(0,0),B^(prime)(1,2),C^(prime)(2,1) Statement 2 : The area of the triangle is constant with respect to the translation of axes. (a) Statement 1 and Statement 2, both are correct. Statement 2 is the correct explanation for Statement 1. (b) Statement 1 and Statement 2, both are correct. Statement 2 is not the correct explanation for Statement 1. (c) Statement 1 is correct but Statement 2 is not correct. (d) Statement 2 is correct but Statement 1 is not correct.

Statement 1: Number of ways of selecting 10 objects from 42 objects of which 21 objects are identical and remaining objects are distinct is 2^(20)dot Statement 2: ^42C_0+^(42)C_1+^(42)C_2++^(42)C_(21)=2^(41)dot (a) Statement 1 and Statement 2 , both are correct. Statement 2 is correct explanation for Statement 1. (b) Statement 1 and Statement 2 , both are correct. Statement 2 is not the correct explanation for Statement 1. (c) Statement 1 is correct but Statement 2 is not correct. (d) Statement 2 is correct but Statement 1 is not correct.

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CENGAGE PUBLICATION-PERMUTATIONS AND COMBINATIONS-All Questions
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  2. The number of different ways in which five "alike dashes" and "eight...

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  4. Rajdhani Express going from Bombay to Delhi stops at five intermedia...

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  5. In a test , there were n number of question. In the test 2^(n - i) stu...

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  6. If N denotes the number of ways of selecting r objects of out ...

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  7. Number of ways in which 30 identical things are distributed among six ...

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  8. (10!)=(2)^p.(3)^q.(5)^r.(7)^8 then

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  9. A is a set containing n elements. A subset P1 is chosen and A is recon...

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  10. Let n be a four-digit integer in which all the digits are different....

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  12. Statement 1: number of ways in which 10 identical toys can be distri...

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  13. Statement 1: The number of positive integral solutions of a b c=30 is ...

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  14. Prove by combinatorial argument that .^(n+1)Cr=^n Cr+^n C(r-1)dot

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  15. Prove that (n !)! is divisible by (n !)^((n-1)!)

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  16. Column I, Column II Number of straight lines joining any two of ...

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  18. If n1 and n2 are five-digit numbers, find the total number of ways...

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  20. If a denotes the number of permutations of (x+2) things taken all at a...

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