Math Quantitative Aptitude MCQ
Math Quantitative Aptitude MCQ
21. A tape recorder is sold for Rs. 3,500 cash, or Rs.
1,000 cash down payment and the balance in three equal easy installments. If 12½% is the rate of interest
compounded annually, find the amount of installment.
- Rs. 1,050.65
- Rs: 1,049.85
- Rs. 1,000.35
- Rs. 1,100.45
22. 16 men are able to complete a work in 12 days
working 14 hours a day. How long will 28 men working
12 hours a day, take to complete the work?
- 5 days
- 6 days
- 8 days
- 4 days
23. The cost of making an article is divided between
materials, labour and overheads in the ratio 3:4:1. If the material cost is Rs. 22.50, find the cost of the
article?
- Rs. 60
- Rs. 80
- Rs. 100
- Rs.40
24. The sum of seven numbers is 235. The average of
first three is 23 and that of last three is 42. The
fourth number is—
- 126
- 195
- 69
- 40
25. A man rows upstream 16 km and downstream 28 km,
taking 5 hours each time. The velocity of the current is—
- 1.8 km/hr
- 1.2 km/hr
- 3.6 km/hr
- 24-km/hr
27. A die is thrown. Let A be the event that the number obtained is greater than 3. Let B be the event that the number obtained is less than 5. Then P (A ∪ B) is
- 3/5
- 0
- 1
- 5/2
28. A focus of an ellipse is at the origin. The directrix is the line x = 4 and the eccentricity is 1/2. Then the length of the semi−major axis is
- 4/3
- 8/3
- 7/3
- 5/3
29. A focus of an ellipse is at the origin. The directrix is the line x = 4 and the eccentricity is 1/2. Then the length of the semi−major axis is
- 4/3
- 8/3
- 7/3
- 5/3
30. A parabola has the origin as its focus and the line x = 2 as the directrix. Then the vertex of the parabola is at
- (0, 2)
- (0, 1)
- (1, 0)
- (1,0)