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(1) Which of the following numbers is not a perfect square?Tata-


(2) Complete the series 2, 5, 9, 19, 37.......Tata-


(3) A watch is marked 20% above the cost price. If it is sold at 10% discount on the marked price, what is the profit or loss percentage?Tata-


(4) The sum of the roots of the equation x² - 5x + 6 = 0 is:Tata-


(5) The system of equations x + 2y = 5 and 3x - y = 4 has:Tata-


(6) The discriminant of the equation ax² + bx + c = 0 is:Tata-


(7) If f(x) = x², then f(-2) is:Tata-


(8) A shopkeeper gains 20% by selling an article for Rs. 150. What is the cost price of the article?Tata-


(9) The sum of n natural numbers is:Tata-


(10) The angle opposite the longest side in a triangle is:Tata-


(11) The equation of a straight line passing through points (1, 2) and (3, 5) is:Tata-


(12) The sine of an angle is defined as the ratio of:Tata-


(13) The height of a tree can be determined using:Tata-


(14) The equation of a circle with center (2, 3) and radius 5 is:Tata-


(15) To construct a perpendicular bisector of a line segment, you would use:Tata-


(16) The area of a sector with central angle θ and radius r is:Tata-


(17) The mean of a set of data is the:Tata-


(18) The slope of the line passing through points (2, 3) and (5, 7) is:Tata-


(19) Which of the following numbers has the largest prime factorization?Tata-


(20) In what ways the letters of the word "RUMOUR" can be arranged? Tata-