1. A car travels a certain distance from town A to town B at the speed of 42 km/ h and from town B to town A at the speed of 48 km/ h. What is the average speed of the car?
(a) 45 km/ h
(b) 46 km/ h
(c) 44 km/ h
(d) Cannot be determined
(e) None
2. A DVD player was purchased for Rs.4860. At what price should it be sold so that 25% profit is earned?
(a) Rs.6225
(b) Rs.6275
(c) Rs.6075
(d) Rs.6025
(e) None
3. 5 students are to be seated in 5 seats. In how many different ways can they be seated?
(a) 120
(b) 20
(c) 60
(d) 72
(e) None
4. The total number of students in a school is 2025. If the number of girls in the school is 1175, then what is the respective ratio of the total number of boys to the total number of girls in the school?
(a) 47 : 34
(b) 19 : 23
(c) 23 : 17
(d) 34 : 47
(e) None
5. Two cyclists start from a point towards the winning post at their respective speeds at 18 km/h and 20 km/h. If one of them takes 8 min longer than the other, how far is the winning post from the starting point?
(a) 58 km
(b) 24 km
(c) 36 km
(d) 12 km
(e) 72 km
6. A sum of Rs.820 is to be paid back in two equal annual installment. If the rate of interest is 5% per annum, then installment is of
(a) Rs.410
(b) Rs.420
(c) Rs.416.80
(d) Rs.441
(e) None
7. If 2x − 3y = 1 and 3x + y = 18, then what is the value of x − y?
(a) −2
(b) 2
(c) −3
(d) 3
(e) None
8. If the length of a rectangle is increased by 40% and the breadth is reduced by 20%, what will be the effect on its area?
(a) Increase by 8%
(b) Increase by 20%
(c) Increase by 12%
(d) Increase by 16%
(e) None
9. The average weight of 10 men is increased by 1.5 kg when one of the men who weights 68 kg is replaced by a new man. Find the weight of the new man.
(a) 73 kg
(b) 83 kg
(c) 79 kg
(d) 82 kg
(e) None
10. The difference between 75% of a number and 20% of the same number is 378.4. What is 40% of that number?
(a) 275.2
(b) 274
(c) 267.2
(d) 266
(e) None
Answers:
1-e
2-c
3-a
4-d
5-b
6-d
7-b
8-c
9-b
10-a
