Mathematics MCQ Question and Answer
Mathematics MCQ Question and Answer
1. The ratio of the areas of the in circle and circumcircle of an equilateral triangle is—
- 1:4
- 1:9
- 1:2
- 1:3
2. A shopkeeper earns a profit of 12% on selling a book at 10% discount on the printed price. The ratio of the cost price to the printed price of the book is—
- 99 : 125
- 55 : 69
- 50: 61
- 45 : 56
3. The ratio of the number of boys and girls in a school is 3 : 2. If 20% of the boys and 25% of the girls are scholarship holders, the percentage of the school students who are not scholarship holders, is—
- 78
- 80
- 56
- 70
4. A does half as much work as B and C does half as much work as A and B together. If C alone can finish the work in 12 days, then together all will finish the work in—
- 6 days
- 7 days
- 4 days
- 5 days
5. Taps A and B can fill a bucket in 12 minutes and 15 minutes respectively. If both are opened and A is closed after 3 minutes, how much further time would it take for B to fill the bucket?
- 8 mm. 5 sec
- 8 mm. 25 sec
- 7 mm. 45 sec
- 7 mm. 15 sec
6. A train -110 m long passes a man, running at 6 kmph in the direction opposite to that of the train in 6 seconds. The speed of the train is—
- 54 km/hr
- 72 km/hr
- 60 km/hr
- 66 km/hr
7. A boat takes 4 hours for travelling downstream from point A to point B and coming back to point A upstream. If the velocity of the stream is 2 kmph and the speed of the boat in still water is 4 kmph, whit is the distance between A and B?
- 8 km
- 9 km
- 4 km
- 6 km
8. A man covered a-distance of 2000 km in 18 hours partly by bus at 72 kmph and partly by train at 160 kmph. The distance covered by bus is—.
- 860 km
- 640 km
- 1280 km
- 720 km
9. The difference between simple interest and compound. Interest on Rs. 1200 for one year at 10% per annum, reckoned half yearly is—
- Rs. 8.80
- Rs. 3
- Nil
- Rs. 13.20
10. When simplified, the product
(2 – 1/2) (2 – 3/5) (2- 5/7)…….(2 -997/999) is equal to
(2 – 1/2) (2 – 3/5) (2- 5/7)…….(2 -997/999) is equal to
- 5/999
- 1001/999
- 1001 /3
- None of these