Q1. Raghav bought two mobiles in a total of Rs. 19,200. He sold first mobile at a profit of 60% and second mobile at a loss of 20%. In the whole transaction he got a net profit of 25%. Find the cost price of each mobile.
Q2. Danial wants to go from New York to Washington via train but due to some problem he misses his train and he has to hire a taxi for it. The charge of taxi for this trip is 300% more than that by train. Charges per km by train is Rs. 5. If train takes 20/9 hours to cover the required distance with an average speed of 20 m/sec, then find charge given by Danial to taxi driver.
Q3. The present population of a village is 40,000. The population increases in next year at a rate of 20% but in further next year the population decreases by a certain rate. If after two years, the population is 33,600 then find the rate of decrement of population in second year.
Q4. The height of a hollow cone is 66 ⅔% more than that of side of a square whose perimeter is 72 meters. The diameter of base of cone is 80 meters. If cost of painting of outer surface of cone is Rs. 7/m² then find total cost to paint the outer surface of cone.
Q5. What is the probability of getting a number from first 40 natural numbers (including the extreme numbers also) which is either a multiple of 5 or 3?
Directions (6-10): In the following table, detail of five exams (A, B, C, D, and E) is given in which number of students enrolled, number of students appeared out of the enrolled students and number of students qualified out of the appeared students in the given exams. Read the table carefully and answer the given questions.
Q6. Total number of students qualified in all the five exams is approximately what percent of the total students enrolled in all the five examination.
Q7. What is the ratio between students enrolled for the exam C & D together to the students appeared for the exam D & E together?
Q9. If in exam ‘A’ 25% of the students who enrolled for exam are female, then what is the number of males who qualified the exam A?
Q10. Out of the number of students who qualified the exam D, 22% of them disqualified due to malpractice, then find the total number of students who are not qualified in exam D?
Directions (11-15): What should come in place of the question mark (?) in the following number series?
Q11. ?, 7800, 1560, 390, 130, 65
Q12. 7, 11, 19, ?, 67, 131
Q13. 5, 10, 25, 70, 205, ?
Q14. 7, 35, 210, ?, 6300, 31500
Q15. 513, 495, ?, 462, 447, 433
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