Answer and Explanation: 1. Answer : (1) 1.4 Explanation: Let 0.9 = x, 0.2 = y and 0.3 = z Then, the given expression = x * x * x + y * y * y + z * z * z - 3* x * y * z / x * x + y * y + z * z - x * y - y * z - z * x = x^3 + y^3 + z^3 - 3xyz / x^2 + y^2 + z^2 - xy -yz - zx = (x + y + z) (x^2 + y^2 + z^2 - xy - yz - zx) / x^2 + y^2 + z^2 - xy - yz - zx = x + y + z = 0.9 + 0.2 + 0.3 = 1.4 2. Answer : (2) 9cm Explanation : Let the length of the smaller line segment = x cm. Therefore The length of larger line segmen Open It.
1. The value of 0.9 * 0.9 * 0.9 + 0.2 * 0.2 * 0.2 + 0.3 * 0.3 * 0.3 - 3 * 0.9 * 0.2 * 0.3/ 0.9 * 0.9 + 0.2 * 0.2 + 0.3 * 0.3 - 0.9 * 0.2 - 0.2 * 0.3 - 0.3 * 0.9 is (1) 1.4 (2) 0.054 (3) 0.8 (4) 1.0 2. The difference of the areas of two squares drawn on two line segments of different length is 32 sq.cm. Find the length of the greater line segment if one is longer than the other by 2 cm. (1) 7 cm (2) 9 cm (3) 11 cm (4) 16 cm 3. Arrange the following fractions in decreasing order : 3/5, 7/9, 11/13 (1) 3/5, 7/9, 11 Open It.
Eight friends P, Q, R, S, T, V, W and Y are sitting around a square table in such a way that four of them sit at four corners of the square while four sit in the middle of each of the four sides. The ones who sit at the four corners face the centre while those who sit in the middle of the sides face outside. P, who faces the centre, sits third to the right of V. T, who faces the centre, is not an immediate neighbour of V. Only one person sits between V and W. S sits second to right of Q. Q faces the centre. R is not an immediate neighbour of P. Open It.
Directions (Q. 1- 5) : Rearrange the following sentences (A), (B), (C), (D), (E) and (F) to make a meaningful paragraph and then answer the questions which follow? (A) In fact, according to mainstream economists, it is inevitable economists, it is inevitable and a necessary evil in any economy. (B) It is thus important for every nation to maintain this reverse of labour force to maintain an optimal level of unemployment. (c) Unemployment is popularly believed to be an index which measures the economic condition of a nation, (d) This is b Open It.
1. Analog computer is (a) is a means of communicating with at a low level (b) a device that operates on data in the form of continuously varying physical quantities (c) is an algebraic high level language (d) All of the above 2. Which of the following options correctly expresses the meaning of the term 'PCs'? (a) Independent computers Open It.
1. First stock exchange was established in______ (a) Delhi (b) Chennai (c) Mumbai (d) Kolkata 2. Which of the following is NOT decided by the Finance Minister while presenting Union Budget every year? (a) Rate of Income Tax (b) Expenditure of Defence Services (c) Relief packages to various sections (d) Repo & Reverse Repo rates Answe Open It.
What approximate value will come in place of the question mark (?) in the following question mark (?) in the following questions? 1. (32.51)2 - (17.45)2 = ? (a) 750 (b) 850 (c) 680 (d) 820 2.88.25% of 450 = ? % of 530 (a) 70 (b) 68 (c) 75 (d) 80 [otw_short Open It.