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 r = 21 cm The ratio of the volume of the sphere to its surface ...

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 = 0 x(x – 32) – 15(x – 32) = 0 x = 15 or 32 II. y = √(31y – 240) ...

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 ...

Q. 65% of 480 + 75% of 280 = ?2 + √1444 a) 26 b) 28 c) 25 ...

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 ...

A alone can complete a work in 18 days. A and B together can complete the work in 10(2/7) days. A and C together can complete the work in 12 days. At what time B and C together can complete 83(1/3)%of work? a) 18 days ...

Q) I. 15x2 – 46x + 32 = 0 II. 3y2 – 17y + 24 = 0 a) x> y b) y> x c) x ≥ y ...

What will come in the place of the question mark in the following series? 6, 14.5, 31.5, 65.5, ? a) 133.5 b) 138.5 c) 135.5 d) 130.5 e) 136.5 Sol: Logic in the series: 6 * 2 + 2.5 = 14.5 14.5 * 2 + 2.5 = 31.5 31.5 * 2 + 2.5 = 65.5 65.5 * 2 + 2.5 = 133.5 So, ...

What will come in the place of the question mark in the following series? 8, 18, 36, 70, ?, 266, 524 a) 126 b) 156 c) 136 d) 166 e) 146 sol: Logic in the series: So, missing term in the series = 136

A vessel contains wine and water in the ratio of 8:7. 45 liters of mixture is removed and filled with 7/20th of initial quantity of wine in the vessel and also 23 liters of water is added, then the ratio of the wine to water becomes 7:6. Find the initial quantity of mixture in the vessel. ...

Average of the present age of A, B and C is equal to the age of C after 5 years. Present age of A is 2/3rd of the sum of the present age of B and C. B is 6 years elder than C. Find the present age of A. a) 21 years ...