Category: Worksheets

Question. From a book containing 100 pages, one page is selected randomly. The probability that the sum of the digits of the page number of the selected page is 11, is:(a) 2/25(b) 9/100(c) 11/100(d) None of these      A Question. One card is drawn from each of two ordinary packs of 52 cards. The probability that […]

Question. Karl-Pearson’s coefficient of skewness of a distribution is 0.32. Its S.(d) is 6.5 and mean 39.6. Then the median of the distribution is given by:      (a) 28.61(b) 38.81(c) 29.13(d) 28.31 Question. Maximize z = 3x + 2y, subject to x + y ≥1, y − 5x ≤ 0, x − y ≥ −1, x […]

Students should refer to Worksheets Class 11 Mathematics Permutations and Combinations Chapter 7 provided below with important questions and answers. These important questions with solutions for Chapter 7 Permutations and Combinations have been prepared by expert teachers for Class 11 Mathematics based on the expected pattern of questions in the class 11 exams. We have […]

Question. If the 4th term in the expansion of (px+x-1)m is 2.5 for all x∈R then:         (a) p = 5 / 2,m = 3(b) p = 1/2, m= 6(c) p = -1/2, m= 6(d) None of these Question. The coefficient of x32 in the expansion of (x4−1/x3)15 is         (a) […]

Question. The sum of 13 + 23 + 33+43 … +153 is: a. 22000b. 10000c. 14400d. 15000 Question. If the A.M., G.M. and H.M. between two positive numbers a and b are equal, then: a. a = bb. ab = 1c. a > bd. a < b Question. If A1 , A2 ; G1 ,G2 […]

Question: The tangents to x2+y2=a2  having inclinations α  and β intersect at P. If cotα cot β = 0, then the locus of P is(a) x +y + = 0(b) x -y − = 0(c) xy = 0 (d) None of these  Question:  The length of the diameter of the circle which touches the x-axis at the point […]

Question. Let M and N be two 3×3 non-singular skew-symmetric matrices such that MN = NM. If PT denotes the transpose of P, then M2 N2 (MT N)-1 (MN−1) is equal to:  (a) M2(b) –N2(c) –M2(d) MN Question. Let ω be a complex cube root of unity with ω ≠ 1 and P = [pij] be a n × n matrix […]

Students should refer to Worksheets Class 11 Mathematics Trigonometric Functions Chapter 3 provided below with important questions and answers. These important questions with solutions for Chapter 3 Trigonometric Functions have been prepared by expert teachers for Class 11 Mathematics based on the expected pattern of questions in the class 11 exams. We have provided Worksheets […]

Question. Both the roots of given equation (x − a)(x − b) + (x − b)(x − c) + (x − c)(x − a) = 0 are always:  a. Positiveb. Negativec. Reald. Imaginary Question. The solution of the equation x+1/x = 2       a. 2, –1b. 0, –1, -1/5c. -1 , 1/5d. None of […]

Question. If X = {8n – 7 – 1: n ∈ N): n∈N} and Y = {49(n–1): n∈N} then:   (a) X ⊆ Y(b) Y ⊆ X(c) X = Y(d) None of these Question. Let A = [x : x ∈ R, |x| < 1] B = [x : x ∈ R, |x – 1| ≥ […]