A. 25%B. 40.5%C. 55%D. 56.25%
Tag: Mathematics
Find the average of the first 20 natural numbers?
A. 10B. 11.5C. 12D. 10.5
If the diagonal of a square is doubled. How does the area of the square change?
A. Becomes fourfoldB. Becomes threefoldC. Becomes twofoldD. none of the above
Find the roots of quadratic equation: x2 + x – 42 = 0?
A. -6, 7B. -8, 7C. 14, -3D. -7, 6
A machine P can print one lakh books in 8 hours, machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines are started at 9 A.M. while machine P is closed at 11 A.M. and the remaining two machines complete work. Approximately at what time will the work (to print one lakh books) be finished ?
A. 11:30 A.M.B. 12 noonC. 12:30 P.M.D. 1:00 P.M.
A wire in the form of a circle of radius 3.5 m is bent in the form of a rectangle, whose length and breadth are in the ratio of 6 : 5. What is the area of the rectangle?
A. 60 cm2B. 30 cm2C. 45 cm2D. 15 cm2
The areas of the two spheres are in the ratio 1: 4. The ratio of their volume is?
A. 1:4B. 1:16C. 1:8D. 1:64
A batsman in his 17th innings makes a score of 85 and their by increasing his average by 3. What is his average after the 17th innings?
A. 34B. 35C. 36D. 37
If a person walks at 14 km/hr instead of 10 km/hr, he would have walked 20 km more. The actual distance travelled by him is:
A. 50 kmB. 56 kmC. 70 kmD. 80 km
The ratio between the length and breadth of a rectangular field is 5:4. If the breadth is 20 meters less than the length. The perimeter of the field is_________?
A. 260mB. 280mC. 360mD. None of these