1. The difference between the largest and the second largest of 3 numbers is added to the smallest number. Now, the average of the largest, second largest and the new number formed exceeds the average of the original three numbers by 5. The largest number exceeds the 2nd largest number by how much?
(a) 10 (b) 15 (c) 20 (d) 30
2. A man covers a distance from A to B on scooter at 30 kmph and rides back from B to A at 20 kmph. Find his average speed during the whole journey?
(a) 24 kmph (b) 20 kmph (c) 12 kmph (d) None of these
3. The average of marks obtained by 120 candidates was 35. If the average of passed candidates was 39 and that of failed candidates was 15, the number of candidates who passed the examination is
(a) 100 (b) 110 (c) 120 (d) 150
4. The average monthly salary of 12 workers and 3 managers in a factory was Rs.600. When one of the manager whose salary was Rs.720, was replaced with a new manager, then the average salary of the team went down to Rs.580. What is the salary of the new manager?
(a) Rs.570 (b) Rs.420 (c) Rs.690 (d) Rs.640
5. Average cost of 5 apples and 4 mangoes is Rs.36. The average cost of 7 apples and 8 mangoes is Rs.48. Find the total cost of 24 apples and 24 mangoes.
(a) 1044 (b) 2088 (c) 720 (d) 324
6. The average wages of a worker during a fortnight comprising 15 consecutive working days was Rs.90 per day. During the first 7 days, his average wages was Rs.87 per day and the average wages during the last 7 days was Rs.92 per day. What was his wage on the 8th day?
(a) Rs.83 (b) Rs.92 (c) Rs.90 (d) Rs.97
7. The average weight of A, B and C is 84 kg. When D joins this group, the average weight becomes 80 kg. If another man E, Whose weight is 3 kg, more than that of D replaces A, the average weight of B, C, D & E becomes 79 kg. Find out the weight of A.
(a) 80 kg (b) 75 kg (c) 85 kg (d) 70 kg
8. The average weight of Ram, Lakhan and Pavan is 67 kg. If the average weight of Ram and Lakhan is 62 kg and that of Lakhan and Pavan is 68 kg, the weight of Lakhan in kg is
(a) 60 (b) 62 (c) 58 (d) None of these
9. The average age of a class of 49 students is 16 years. A new student joins the class, as a result of which the average increases by 0.5. How old is the new student?
(a) 41 (b) 36 (c)18 (d) 16.5
10. What is the average of the first seven multiples of 2037?
(a) 4326 (b) 8148 (c) 6498 (d) 9264
11.The average marks scored by Ganesh in English, Science, Mathematics and history is less than 15 from that scored by him in English, History, Geography and Mathematics. What is the difference of marks in science and geography scored by him?
(a) 2.04gm (b) 2.42 gms (c) 3.42 gms (d) 3.04gms
12. The average age of a group of nine men today is same as it was six years ago, with
One of the men having been replaced by another much younger man. The difference in ages of the man being replaced and the man replacing him is how many years?
(a) 6 (b) 15 (c) 54 (d) cannot be determined
13. The average salary of workers in AMS careers is Rs.2000, the average salary of faculty being Rs.4000 and the management trainees being Rs1250. The total no of workers could be
(a) 450 (b) 300 (c) 110 (d) 500
14. In a class two students weighing 46 and 52 Kgs leave the class and are replaced by the two students weighing 51 and 55 Kgs. If the average weight of the class increases by one-fourth of a Kg, how many students are there in the class?
(a) 8 (b) 24 (c) 32 (d) cannot be determined
15. Two years ago the average age of a family of 8 members was 18 years. After the addition of a boy, the average age of the family remains the same today. What is the age of the baby?
(a) 2Y (b) 3Y (c) 4Y (d) None of these
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