. 28 C. 24 D. 48 E. 12 The area , in cm2 , of a circle has the same numerical value as the circumference, in cm, of the same circle. The radius , in cm, is A. 2 B. 1 C.2/π D.1/π E.1/2 An arc PQ subtends

the ratio of the areas of two circles is 49:25 , then the ratio of the diameters of these circles is A. 3:4 B. 4:5 C. 7:5 D. 6:5 E. 1:4 If x is 2/3 of y and y is 3/4 of z , then the ratio of z to x is

E = { x/ x is an even positive integer less than 10 } (c) E = { x / x is positive integer, x< 10 and x is a multiple of 2} (2) F = { 3, 6,9, 12, 15 , …} (a) F = {x/ x is appositive integer that is divisible

A.4´1´´ B.4´ C. 3´11´´ D.3´10´´ E. 41/2´ For the sample 5,6,5,7,8,5,6,7,6,5 which of the following is (are) true? The median is 6 2. the mean is 6 3. the mode is 5. A. 1 only B.2 only C. 3 only D. 1 and

(a) The substances with high melting points may be (molwcular, non molecular , either molecular or non molecular) substance. (b) Atomic mass can be measured by a(an) (ordinary, balance, spectrometer, mass

(a) The substances with high melting points may be (molwcular, non molecular , either molecular or non molecular) substance. (b) Atomic mass can be measured by a(an) (ordinary, balance, spectrometer, mass

.Choose the correct or the most appropriate answer for the following questions. Write only the letter of the correct answer. (10 marks ) (1) A bag contains x red balls and 2 blues. A ball is chosen at

A physical quantity which has direction as well as magnitude is known as vector, Displacement has both magnitude and direction. The sum of three vectors, having unequal magnitude, can be equal to zero.

The vertices of a triangle ate the points A(-2,3), B( 5,-4) and C(1,8). Find the slope of each side and also the slope of median. The vertices of parallelogram are the points R(1,4), S(3,2), T(4,6), V(2,8).

X = { a,b,c} and Y = {1,2,3,4}. A mapping is given by a ↦ 1 b ↦ 2 c ↦ 2 Draw the arrow diagram for this function. Write down the set of ordered pairs describing this function. X = { a,b,c} and Y = {1,2,3,4}.

M = {x/x is an integer , and -3<x<6} , N = the set of positive integers that are less than 8. Find M∩N. (3 marks) A = {x/x is a positive integer that is divisible by 3}, B = {x/x is a positive integer

. Select the correct word(s) given in the bracket. (7 marks) (a) Proteins is ( polymer, copolymer, monomer). (b) The molecule of (NH3, ClF3, BCl3) does not deviate octet rule. (c) The volume of the gas

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