(a) 80
(b) 84
(c) 72
(d) 56
Q2. Heerakund Dam, which is a rectangular in shape, can produce electricity only if the height of water level in it is at least 7 cm. Now water is pumped in at the rate of 5 km per hour through a pipe of diameter 14 cm into the dam area of dimension 50 m × 44 m. In what time the dam will be able to produce electricity?
(a) 2 hours
(b) 3 hours
(c) 5 hours
(d) 7 hours
Q3. The exterior angle of a polygon is 1/5 of the its interior angle. How many sides does the polygon have
(a) 8
(b) 10
(c) 12
(d) 14
Q4. What is (in unit square) the area of a triangle with side length 4 unit, 6 unit and 10 unit?
(a) 24
(b) 30
(c) 48
(d) None of these
Q6. If the perimeter of right angle triangle is 30 cm and its hypotenuse is 13 cm. What is the radius of the circle inscribed in a triangle?
(a) 2 cm
(b) 5 cm
(c) 1 cm
(d) None of these
Q7. What is the relation between the circum radius and in radius in any triangle?
(a) R ≥ 2r
(b) R = 2r
(c) R ≤ 2r
(d) R < 2r
Q9. A seller fixes the marked price 50% more than cost price and gives a discount of 15%, and so he gets a profit of Rs. 165. Find the marked price of that article.
(a) Rs. 900
(b) Rs. 800
(c) Rs. 700
(d) Rs. 1000
Q10. If the area of a square is increased by 100%, then the percentage increase in the length of its diagonal is
(a) 10%
(b) 41.4%
(c) 50%
(d) 55.5%
Q11. A train approaches a tunnel AB. Inside the tunnel a cat located at a point that is 3/8 of the distance AB measured from the entrance A. When the train whistles, the cat runs. If the cat moves to the entrance of the tunnel A, the train catches the cat exactly at the entrance. If the cat moves to the exit B, the train catches the cat exactly at the exit. What is the ratio of speed of train and speed of cat?
(a) 4 : 1
(b) 1 : 2
(c) 3 : 4
(d) None of these
Q12. On Independence Day, if 30 children were made to stand in a column, 16 columns could be formed. If 24 children were made to stand in a column, how many columns could be formed?
(a) 20
(b) 21
(c) 22
(d) 18
Q13. At the start of seminar, the ratio of the number of male participants to the number of female participants was 3:1. During the tea break, 16 participants left and 6 more female participants registered. The ratio of the male to the female participants became 2 : 1. What was the total number of participants at the start of the seminar?
(a) 164
(b) 148
(c) 154
(d) 112
Q14. Each edge of a cube is increased by 40%. What is the percentage increase in its volume?
(a) 120%
(b) 40%
(c) 174.4%
(d) 146%
Q15. A and B can do a job alone in 24 days and 96 days respectively. B starts the work and worked for 15 days. Then A joins him and both together completed the work. For how many days did A actually work on the job?
(a) 107/5 days
(b) 81/5 days
(c) 18 days
(d) 24 days
No comments:
Post a Comment