Quantitative aptitude

Q. I. x2 – 34x + 289 = 0 II. y3 = 702 + 1691/2 a)            x> y b)            y> x c)            x ≥ y d)            x ≤ y e)            x = y or relation cannot be established  Sol: I. x2 – 34x + 289 = 0 x2 – 17x – 17x + 289 = […]

In a mixture of milk and water, milk is 16 L more than water and the cost of the mixture is Rs.33(1/3). If the cost of pure milk is Rs.50 per L, then find the total quantity of the mixture. a)            36 L b)            48 L c)            32 L d)            50 L e)            40 L

Average weight of 13 students in a class is 55 kg, out of which the average weight of the first 6 students is 53 kg and the average weight of next 6 students out of the remaining 7 is 56 kg, then find the weight of the remaining one student. a)            61 kg b)            57

Ratio of total goals scored by Messi against teams A to B is 3: 5 and the ratio of goals scored by Messi against teams B to C are 3: 2. If the difference between goals scored by him against A and C is 5, then find the total number of goals scored by Messi

1. Volume of a sphere is 38808 cm3. Find the ratio of its volume to its surface area. a) 7: 2 b) 21: 1 c) Cannot be determined d) 7: 1 e) 21: 2  Sol: Let the radius of the sphere = ‘r’ cm So, (4/3) * (22/7) * r3 = 38808 r3 = 9261

Q. I. x2 – 47x + 480 = 0 II. y = √(31y – 240) a)            x = y or relation cannot be established b)            y> x c)            x ≥ y d)            x ≤ y e)            x> y Sol: I. x2 – 47x + 480 = 0 x2 – 32x – 15x + 480 =

Directions: Study the following information carefully and answer the questions. The given pie chart shows the percentage distribution of the total number of plants (neem, mango and banyan) planted in five different years i.e. 1991, 1992, 1993, 1994 and 1995. 1)          The total number of plants planted in 1991 and 1995 together is how much

Q. 65% of 480 + 75% of 280 = ?2 + √1444 a)            26 b)            28 c)            25 d)            22 e)            27 Sol: 65% of 480 + 75% of 280 = ?2 + √1444 312 + 210 = ?2 + 38 ?2 = 484 ? = 22

Q. 125% of 160 + √11664 = ? + 60% of 80 a) 230 b) 240 c) 250 d) 260 e) 210 Sol: 125% of 160 + √11664 = ? + 60% of 80 200 + 108 = ? + 48 ? = 260

Direction: Study the following data carefully and answer the questions: There are two categories of Pasta: Veg and Nonveg in a restaurant. In both Veg and Non- veg there are again two varieties:red sauce and white Sauce. In the veg category, people either like red sauce or white sauce or both and similarly in the