Consider the following table of inverse variation: M 1 -6 2 C N -4 A B 60 The values of A, B and C in the above table respectively are `-1,\ -30 ,\ 10` b. `-30 ,\ 10 ,\ -1` c. `10 ,\ -30 ,\ -1` d. `10 ,\ -1,\ 30`

The elements Li, B, C, Be and N have the electronegativities 1.0, 2.0, 1.5 and 3.0, respectively on the Pauling scale.

The average of 2, 7, 6 and x is 5 and the average of 18, 1, 6, x and y is 10. What is the value of y ? (a) 5 (b) 10 (c) 20 (d) 30

If in a DeltaABC,A=30^(@),B=45^(@) and a = 1, then the values of b and c are respectively

If the radius of a sphere is increased by 10%, then the volume will be increased by (a) 33.1% (b) 30% (c) 50% (d) 10%

The value of ((30), (0))((30), (10))-((30), (1))((30),( 11)) +(30 2)(30 12)++(30 20)(30 30)= a. ^60 C 20 b. ^30 C 10 c. ^60 C 30 d. ^40 C 30

The term independent of a in the expansion of (1+sqrta+ 1/(sqrta-1))^-30 is (a) 30C_20 (b) 0 (c) 30C_10 (d) non of these

The term independent of a in the expansion of (1+sqrta+ 1/(sqrta-1))^-30 is (a) 30C_20 (b) 0 (c) 30C_10 (d) non of these

In which of the following tables, a\ a n d\ b vary directly. Also, find the constant of variation if a\ a n d\ b are in direct variation. (i) a: 4, 7, 21, 28 and b:12, 21, 63, 84 (ii) a: 2.5, 5, 7.5, 10, 15 and b:10, 20, 30, 40, 60 (iii) a:1, 2, 3, 4, 5 and b:2, 1, 6, 3, 2/5

In which of the following tables, a\ a n d\ b vary directly. Also, find the constant of variation if a\ a n d\ b are in direct variation. (i) a, 4, 7, 21, 28 b, 12, 21, 63, 84 (ii) a, 2.5, 5, 7.5, 10, 15 b, 10, 20, 30, 40, 60 (iii) a, 1, 2, 3, 4, 5 b, 2, 1, 6, 3, 2/5

The coefficient of x^(28) in the expansion of (1+x^3-x^6)^(30) is a 1 b. 0 c. 30^ C_6 d. ^30 C_3