1. The average age of a man and his son is 45 years. The ratio of their ages is 5 : 1. What is the difference between the ages of the man and his son?
a)40 years
b)60 years
c)55 years
d)45 years
e)None of these
2. The difference between 41% of a number and 15% of the same number is 390. What is 33% of the number?
3. The inner diameter of a well is 18meters. If the well is 28 metres deep then what is its volume?
a)7218 cu m
b)7282 cu m
c)7128 cu m
e)None of these
4. If a commission of 10% is given on MP of book ,the publisher gains 20% if the commission is increase to 15% the gain % is ?
e) None of these
5. A takes 2 hr more than B to walk D km .if A double his speed than he can make it in 1 hr less than B. How much time does B require for walking D km?
6. The circumferences two concentric circles are 186m and 142m. What is difference between their radii?
7. In a class of 45 students and 8 teachers, each student got sweets that are 20% of the total number of students and each teacher got sweets that are 40% of the total number of students. How many sweets were there?
8. There are two examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same. If 20 candidates are sent from B to A, then the number of students in A is double the number of students in B. The number of students in room A is:
e) None of these
9. A.train covers a distance of 880 km in 16 hours. What is the average speed of the car, if the speed of the car is 30% less than the speed of the train?
a)71.5 kmph
c)38.5 kmph
e)37.5 kmph
10. A is 30% more efficient than B. How much time will they, working together, take to complete a job which A alone could have done in 23 days?
a) 11 days
b) 13 days
c) 20 days
d) 15 days
e) None of these
11. A does half as much work as B in three-fourth of the time. If together they take 18 days to complete the work, how much time shall B take to do it?
a) 30 days
b) 40 days
c) 15 days
e) None of these
Direction (12-13):Find the approximate value should come in the question mark ?
12. 12591 / 39.8 + 933 / 13 - 12.86 * 14.2 + 135 = ?
13. 33% of 1235 + 917 / 12 - 129% of 765 + 682 = ?
14. In simultaneous throw of two coins,the probability of getting at least one head is:
e) None of these
15. A bag contains 6 black balls and 8 white balls. one ball is drawn at random.what is the probability that the ball drawn is white:
e)None of these
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